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12724988923 = 521116321001
BaseRepresentation
bin10111101100111011…
…11110101111111011
31012211211022102012001
423312131332233323
5202030044121143
65502404401431
7630223423033
oct136635765773
935754272161
1012724988923
11543aa19579
1225716a6277
13127a41305a
1488a01c8c3
154e722c14d
hex2f677ebfb

12724988923 has 8 divisors (see below), whose sum is σ = 12760983216. Its totient is φ = 12689040000.

The previous prime is 12724988863. The next prime is 12724988929. The reversal of 12724988923 is 32988942721.

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

It is a cyclic number.

It is not a de Polignac number, because 12724988923 - 233 = 4135054331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12724988929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595423 + ... + 616423.

It is an arithmetic number, because the mean of its divisors is an integer number (1595122902).

Almost surely, 212724988923 is an apocalyptic number.

12724988923 is a deficient number, since it is larger than the sum of its proper divisors (35994293).

12724988923 is a wasteful number, since it uses less digits than its factorization.

12724988923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22685.

The product of its digits is 3483648, while the sum is 55.

The spelling of 12724988923 in words is "twelve billion, seven hundred twenty-four million, nine hundred eighty-eight thousand, nine hundred twenty-three".

Divisors: 1 521 1163 21001 605923 10941521 24424163 12724988923