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12807897692 = 223201974423
BaseRepresentation
bin10111110110110100…
…10000001001011100
31020001121022121122012
423323122100021130
5202212310211232
65514525410352
7632251222412
oct137332201134
936047277565
1012807897692
1154827a7117
1225954099b8
1312916513b5
148970412b2
154ee6579b2
hex2fb69025c

12807897692 has 6 divisors (see below), whose sum is σ = 22413820968. Its totient is φ = 6403948844.

The previous prime is 12807897671. The next prime is 12807897871. The reversal of 12807897692 is 29679870821.

12807897692 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600987208 + ... + 1600987215.

It is an arithmetic number, because the mean of its divisors is an integer number (3735636828).

Almost surely, 212807897692 is an apocalyptic number.

It is an amenable number.

12807897692 is a deficient number, since it is larger than the sum of its proper divisors (9605923276).

12807897692 is a wasteful number, since it uses less digits than its factorization.

12807897692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201974427 (or 3201974425 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 59.

The spelling of 12807897692 in words is "twelve billion, eight hundred seven million, eight hundred ninety-seven thousand, six hundred ninety-two".

Divisors: 1 2 4 3201974423 6403948846 12807897692