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13528302768 = 2432731286939
BaseRepresentation
bin11001001100101100…
…11000010010110000
31021220210212222121200
430212112120102300
5210201221142033
610114222251200
7656146450641
oct144626302260
937823788550
1013528302768
115812413112
122756726b00
1313779863a6
149249ab6c8
15542a0b013
hex3265984b0

13528302768 has 60 divisors (see below), whose sum is σ = 38379124680. Its totient is φ = 4447657728.

The previous prime is 13528302761. The next prime is 13528302773. The reversal of 13528302768 is 86720382531.

13528302768 is a `hidden beast` number, since 13 + 528 + 30 + 27 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (13528302761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 632958 + ... + 653981.

It is an arithmetic number, because the mean of its divisors is an integer number (639652078).

Almost surely, 213528302768 is an apocalyptic number.

13528302768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13528302768 is an abundant number, since it is smaller than the sum of its proper divisors (24850821912).

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

13528302768 is a wasteful number, since it uses less digits than its factorization.

13528302768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287026 (or 1287017 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 13528302768 in words is "thirteen billion, five hundred twenty-eight million, three hundred two thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 73 144 146 219 292 438 584 657 876 1168 1314 1752 2628 3504 5256 10512 1286939 2573878 3860817 5147756 7721634 10295512 11582451 15443268 20591024 23164902 30886536 46329804 61773072 92659608 93946547 185319216 187893094 281839641 375786188 563679282 751572376 845518923 1127358564 1503144752 1691037846 2254717128 3382075692 4509434256 6764151384 13528302768