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312893042431 is a prime number
BaseRepresentation
bin1001000110110011110…
…00001110111011111111
31002220122001110110000011
410203121320032323333
520111301104324211
6355424023444051
731414531656334
oct4433170167377
91086561413004
10312893042431
11110773a68972
12507832b6627
1323675cc1cb8
14112035c898b
158214534921
hex48d9e0eeff

312893042431 has 2 divisors, whose sum is σ = 312893042432. Its totient is φ = 312893042430.

The previous prime is 312893042369. The next prime is 312893042447. The reversal of 312893042431 is 134240398213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312893042431 - 219 = 312892518143 is a prime.

It is a super-2 number, since 2×3128930424312 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312893048431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156446521215 + 156446521216.

It is an arithmetic number, because the mean of its divisors is an integer number (156446521216).

Almost surely, 2312893042431 is an apocalyptic number.

312893042431 is a deficient number, since it is larger than the sum of its proper divisors (1).

312893042431 is an equidigital number, since it uses as much as digits as its factorization.

312893042431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 312893042431 in words is "three hundred twelve billion, eight hundred ninety-three million, forty-two thousand, four hundred thirty-one".