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15985532038364 = 227570911858513
BaseRepresentation
bin1110100010011110101111…
…1101010110110011011100
32002121012110012202012110122
43220213223331112303130
54043401332200211424
653555352501254112
73236626246251350
oct350475375266334
962535405665418
1015985532038364
115103476103789
12196212a404338
138bc576c61075
143d39bd62d460
151cac48b5c45e
hexe89ebf56cdc

15985532038364 has 12 divisors (see below), whose sum is σ = 31971064076784. Its totient is φ = 6850942302144.

The previous prime is 15985532038363. The next prime is 15985532038477. The reversal of 15985532038364 is 46383023558951.

It is a happy number.

15985532038364 is an admirable number.

It is a hoax number, since the sum of its digits (62) 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 = 15985532038297 and 15985532038306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15985532038363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285455929229 + ... + 285455929284.

It is an arithmetic number, because the mean of its divisors is an integer number (2664255339732).

Almost surely, 215985532038364 is an apocalyptic number.

15985532038364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15985532038364 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

15985532038364 is a wasteful number, since it uses less digits than its factorization.

15985532038364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570911858524 (or 570911858522 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 62.

The spelling of 15985532038364 in words is "fifteen trillion, nine hundred eighty-five billion, five hundred thirty-two million, thirty-eight thousand, three hundred sixty-four".

Divisors: 1 2 4 7 14 28 570911858513 1141823717026 2283647434052 3996383009591 7992766019182 15985532038364