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12837432852 = 2233293405683
BaseRepresentation
bin10111111010010101…
…11010111000010100
31020010122220011021000
423331022322320110
5202242340322402
65521502423300
7633060243636
oct137512727024
936118804230
1012837432852
11549843a342
1225a3291b30
1312977c291a
1489ad2ca56
1550203dc1c
hex2fd2bae14

12837432852 has 48 divisors (see below), whose sum is σ = 33395906880. Its totient is φ = 4264529184.

The previous prime is 12837432799. The next prime is 12837432863. The reversal of 12837432852 is 25823473821.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12837432798 and 12837432807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171198 + ... + 234485.

It is an arithmetic number, because the mean of its divisors is an integer number (695748060).

Almost surely, 212837432852 is an apocalyptic number.

12837432852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12837432852 is an abundant number, since it is smaller than the sum of its proper divisors (20558474028).

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

12837432852 is a wasteful number, since it uses less digits than its factorization.

12837432852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405989 (or 405981 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The spelling of 12837432852 in words is "twelve billion, eight hundred thirty-seven million, four hundred thirty-two thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 293 586 879 1172 1758 2637 3516 5274 7911 10548 15822 31644 405683 811366 1217049 1622732 2434098 3651147 4868196 7302294 10953441 14604588 21906882 43813764 118865119 237730238 356595357 475460476 713190714 1069786071 1426381428 2139572142 3209358213 4279144284 6418716426 12837432852