Search a number
-
+
12791376057 = 3291301113011
BaseRepresentation
bin10111110100110110…
…01110100010111001
31020000110020020012210
423322123032202321
5202144043013212
65513135325333
7631660621365
oct137233164271
936013206183
1012791376057
115474442179
12258b980849
13128b0b8295
14894b802a5
154ece9253c
hex2fa6ce8b9

12791376057 has 16 divisors (see below), whose sum is σ = 17656994880. Its totient is φ = 8227128000.

The previous prime is 12791376019. The next prime is 12791376067. The reversal of 12791376057 is 75067319721.

It is not a de Polignac number, because 12791376057 - 214 = 12791359673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12791375997 and 12791376015.

It is not an unprimeable number, because it can be changed into a prime (12791376007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56682 + ... + 169692.

It is an arithmetic number, because the mean of its divisors is an integer number (1103562180).

Almost surely, 212791376057 is an apocalyptic number.

It is an amenable number.

12791376057 is a deficient number, since it is larger than the sum of its proper divisors (4865618823).

12791376057 is a wasteful number, since it uses less digits than its factorization.

12791376057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114344.

The product of its (nonzero) digits is 555660, while the sum is 48.

The spelling of 12791376057 in words is "twelve billion, seven hundred ninety-one million, three hundred seventy-six thousand, fifty-seven".

Divisors: 1 3 29 87 1301 3903 37729 113011 113187 339033 3277319 9831957 147027311 441081933 4263792019 12791376057