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12693524551 = 56994723557
BaseRepresentation
bin10111101001001011…
…11101000001000111
31012202122002212011221
423310211331001013
5201444020241201
65455322141211
7626362115131
oct136445750107
935678085157
1012693524551
115424188964
122563051807
131273a47696
14885b8c051
154e45b44a1
hex2f497d047

12693524551 has 8 divisors (see below), whose sum is σ = 12729800880. Its totient is φ = 12657298368.

The previous prime is 12693524549. The next prime is 12693524563. The reversal of 12693524551 is 15542539621.

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 12693524551 - 21 = 12693524549 is a prime.

It is a super-2 number, since 2×126935245512 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12693524498 and 12693524507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12693524531) 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, 527065 + ... + 550621.

It is an arithmetic number, because the mean of its divisors is an integer number (1591225110).

Almost surely, 212693524551 is an apocalyptic number.

12693524551 is a deficient number, since it is larger than the sum of its proper divisors (36276329).

12693524551 is an equidigital number, since it uses as much as digits as its factorization.

12693524551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25073.

The product of its digits is 324000, while the sum is 43.

The spelling of 12693524551 in words is "twelve billion, six hundred ninety-three million, five hundred twenty-four thousand, five hundred fifty-one".

Divisors: 1 569 947 23557 538843 13403933 22308479 12693524551