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2006612520 = 2335111997639
BaseRepresentation
bin111011110011010…
…0111101000101000
312011211210110220020
41313212213220220
513102143100040
6531040400440
7100503632163
oct16746475050
95154713806
102006612520
1193a753760
12480016120
1325c9510b3
141506daada
15bb26bcd0
hex779a7a28

2006612520 has 128 divisors (see below), whose sum is σ = 6600960000. Its totient is φ = 483943680.

The previous prime is 2006612471. The next prime is 2006612521. The reversal of 2006612520 is 252166002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2006612521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258861 + ... + 266499.

It is an arithmetic number, because the mean of its divisors is an integer number (51570000).

Almost surely, 22006612520 is an apocalyptic number.

2006612520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2006612520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3300480000).

2006612520 is an abundant number, since it is smaller than the sum of its proper divisors (4594347480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2006612520 is a wasteful number, since it uses less digits than its factorization.

2006612520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7863 (or 7859 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2006612520 is about 44795.2287637869. The cubic root of 2006612520 is about 1261.3080645959.

Adding to 2006612520 its reverse (252166002), we get a palindrome (2258778522).

The spelling of 2006612520 in words is "two billion, six million, six hundred twelve thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 199 220 264 330 398 440 597 660 796 995 1194 1320 1592 1990 2189 2388 2985 3980 4378 4776 5970 6567 7639 7960 8756 10945 11940 13134 15278 17512 21890 22917 23880 26268 30556 32835 38195 43780 45834 52536 61112 65670 76390 84029 87560 91668 114585 131340 152780 168058 183336 229170 252087 262680 305560 336116 420145 458340 504174 672232 840290 916680 1008348 1260435 1520161 1680580 2016696 2520870 3040322 3361160 4560483 5041740 6080644 7600805 9120966 10083480 12161288 15201610 16721771 18241932 22802415 30403220 33443542 36483864 45604830 50165313 60806440 66887084 83608855 91209660 100330626 133774168 167217710 182419320 200661252 250826565 334435420 401322504 501653130 668870840 1003306260 2006612520