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20076525 = 335272607
BaseRepresentation
bin100110010010…
…1011111101101
31101202222211000
41030211133231
520114422100
61554150513
7332435100
oct114453755
941688730
1020076525
1110372877
126882439
13420c201
142948737
151b68900
hex13257ed

20076525 has 72 divisors (see below), whose sum is σ = 42973440. Its totient is φ = 9162720.

The previous prime is 20076523. The next prime is 20076557. The reversal of 20076525 is 52567002.

20076525 = 6092 + 6102 + ... + 6582.

20076525 is a `hidden beast` number, since 2 + 0 + 0 + 7 + 652 + 5 = 666.

It is not a de Polignac number, because 20076525 - 21 = 20076523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20076523) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 32772 + ... + 33378.

Almost surely, 220076525 is an apocalyptic number.

20076525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20076525 is an abundant number, since it is smaller than the sum of its proper divisors (22896915).

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

20076525 is a wasteful number, since it uses less digits than its factorization.

20076525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 20076525 is about 4480.6835416039. The cubic root of 20076525 is about 271.7875223916.

The spelling of 20076525 in words is "twenty million, seventy-six thousand, five hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 27 35 45 49 63 75 105 135 147 175 189 225 245 315 441 525 607 675 735 945 1225 1323 1575 1821 2205 3035 3675 4249 4725 5463 6615 9105 11025 12747 15175 16389 21245 27315 29743 33075 38241 45525 63735 81945 89229 106225 114723 136575 148715 191205 267687 318675 409725 446145 573615 743575 803061 956025 1338435 2230725 2868075 4015305 6692175 20076525