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15972130002 = 232662021667
BaseRepresentation
bin11101110000000001…
…10101110011010010
31112020010101021100110
432320000311303102
5230202331130002
611200522102150
71103542602453
oct167000656322
945203337313
1015972130002
11685693a744
12311904a956
1316770788ca
14ab739912a
1563733ce6c
hex3b8035cd2

15972130002 has 8 divisors (see below), whose sum is σ = 31944260016. Its totient is φ = 5324043332.

The previous prime is 15972129997. The next prime is 15972130021. The reversal of 15972130002 is 20003127951.

It is a sphenic number, since it is the product of 3 distinct primes.

15972130002 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331010828 + ... + 1331010839.

It is an arithmetic number, because the mean of its divisors is an integer number (3993032502).

Almost surely, 215972130002 is an apocalyptic number.

15972130002 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.

15972130002 is a wasteful number, since it uses less digits than its factorization.

15972130002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662021672.

The product of its (nonzero) digits is 3780, while the sum is 30.

Adding to 15972130002 its reverse (20003127951), we get a palindrome (35975257953).

The spelling of 15972130002 in words is "fifteen billion, nine hundred seventy-two million, one hundred thirty thousand, two".

Divisors: 1 2 3 6 2662021667 5324043334 7986065001 15972130002