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1110145212 = 2232119728901
BaseRepresentation
bin100001000101011…
…0111100010111100
32212100221012221100
41002022313202330
54233144121322
6302054133100
736340035651
oct10212674274
92770835840
101110145212
1151a714590
1226b951190
13148cc3677
14a761dc28
15676dbdac
hex422b78bc

1110145212 has 72 divisors (see below), whose sum is σ = 3092976432. Its totient is φ = 332928000.

The previous prime is 1110145207. The next prime is 1110145213. The reversal of 1110145212 is 2125410111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110145213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23962 + ... + 52862.

It is an arithmetic number, because the mean of its divisors is an integer number (42958006).

Almost surely, 21110145212 is an apocalyptic number.

1110145212 is a gapful number since it is divisible by the number (12) 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 1110145212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546488216).

1110145212 is an abundant number, since it is smaller than the sum of its proper divisors (1982831220).

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

1110145212 is a wasteful number, since it uses less digits than its factorization.

1110145212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29019 (or 29014 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1110145212 is about 33318.8416965536. The cubic root of 1110145212 is about 1035.4439543299.

Adding to 1110145212 its reverse (2125410111), we get a palindrome (3235555323).

The spelling of 1110145212 in words is "one billion, one hundred ten million, one hundred forty-five thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 97 99 132 194 198 291 388 396 582 873 1067 1164 1746 2134 3201 3492 4268 6402 9603 12804 19206 28901 38412 57802 86703 115604 173406 260109 317911 346812 520218 635822 953733 1040436 1271644 1907466 2803397 2861199 3814932 5606794 5722398 8410191 11213588 11444796 16820382 25230573 30837367 33640764 50461146 61674734 92512101 100922292 123349468 185024202 277536303 370048404 555072606 1110145212