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15684130932 = 2238631514497
BaseRepresentation
bin11101001101101100…
…01101100001110100
31111111001110101220020
432212312031201310
5224110114142212
611112153205140
71063444625151
oct164666154164
944431411806
1015684130932
116719312788
1230587007b0
13162c4c0362
14a8b02b228
1561bdeed8c
hex3a6d8d874

15684130932 has 24 divisors (see below), whose sum is σ = 36638735616. Its totient is φ = 5221982208.

The previous prime is 15684130927. The next prime is 15684130993. The reversal of 15684130932 is 23903148651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746893 + ... + 767604.

It is an arithmetic number, because the mean of its divisors is an integer number (1526613984).

Almost surely, 215684130932 is an apocalyptic number.

15684130932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15684130932 is an abundant number, since it is smaller than the sum of its proper divisors (20954604684).

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

15684130932 is a wasteful number, since it uses less digits than its factorization.

15684130932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515367 (or 1515365 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 15684130932 in words is "fifteen billion, six hundred eighty-four million, one hundred thirty thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 12 863 1726 2589 3452 5178 10356 1514497 3028994 4543491 6057988 9086982 18173964 1307010911 2614021822 3921032733 5228043644 7842065466 15684130932