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312256113 = 31367731637
BaseRepresentation
bin10010100111001…
…010011001110001
3210202120020212020
4102213022121301
51114414143423
650552422053
710511063451
oct2247123161
9722506766
10312256113
11150295704
12886a7929
134c8cc540
142d683d61
151c6304e3
hex129ca671

312256113 has 32 divisors (see below), whose sum is σ = 461575296. Its totient is φ = 186582528.

The previous prime is 312256097. The next prime is 312256151. The reversal of 312256113 is 311652213.

It is not a de Polignac number, because 312256113 - 24 = 312256097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312256183) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189931 + ... + 191567.

It is an arithmetic number, because the mean of its divisors is an integer number (14424228).

Almost surely, 2312256113 is an apocalyptic number.

It is an amenable number.

312256113 is a deficient number, since it is larger than the sum of its proper divisors (149319183).

312256113 is a wasteful number, since it uses less digits than its factorization.

312256113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793.

The product of its digits is 1080, while the sum is 24.

The square root of 312256113 is about 17670.7700171781. The cubic root of 312256113 is about 678.4278218918.

The spelling of 312256113 in words is "three hundred twelve million, two hundred fifty-six thousand, one hundred thirteen".

Divisors: 1 3 13 39 67 73 201 219 871 949 1637 2613 2847 4891 4911 14673 21281 63583 63843 109679 119501 190749 329037 358503 1425827 1553513 4277481 4660539 8006567 24019701 104085371 312256113