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13057456651 = 94713788233
BaseRepresentation
bin11000010100100100…
…01111101000001011
31020200222220112011121
430022102033220023
5203220202103101
65555402340111
7641401356511
oct141222175013
936628815147
1013057456651
1155a0659498
122644aba637
13130126b115
148bc2444b1
155165010a1
hex30a48fa0b

13057456651 has 4 divisors (see below), whose sum is σ = 13071245832. Its totient is φ = 13043667472.

The previous prime is 13057456627. The next prime is 13057456681. The reversal of 13057456651 is 15665475031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15665475031 = 16001979031.

It is a cyclic number.

It is not a de Polignac number, because 13057456651 - 217 = 13057325579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13057456598 and 13057456607.

It is not an unprimeable number, because it can be changed into a prime (13057456681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6893170 + ... + 6895063.

It is an arithmetic number, because the mean of its divisors is an integer number (3267811458).

Almost surely, 213057456651 is an apocalyptic number.

13057456651 is a deficient number, since it is larger than the sum of its proper divisors (13789181).

13057456651 is an equidigital number, since it uses as much as digits as its factorization.

13057456651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13789180.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 13057456651 in words is "thirteen billion, fifty-seven million, four hundred fifty-six thousand, six hundred fifty-one".

Divisors: 1 947 13788233 13057456651