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316425431 = 745203633
BaseRepresentation
bin10010110111000…
…100010011010111
3211001102002002102
4102313010103113
51122001103211
651222032315
710561400060
oct2267042327
9731362072
10316425431
11152683123
1289b7869b
135072c1aa
143004b567
151cba5a3b
hex12dc44d7

316425431 has 4 divisors (see below), whose sum is σ = 361629072. Its totient is φ = 271221792.

The previous prime is 316425419. The next prime is 316425451. The reversal of 316425431 is 134524613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134524613 = 347387679.

It is a cyclic number.

It is not a de Polignac number, because 316425431 - 26 = 316425367 is a prime.

It is a super-2 number, since 2×3164254312 = 200250106767071522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 316425394 and 316425403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316425451) 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, 22601810 + ... + 22601823.

It is an arithmetic number, because the mean of its divisors is an integer number (90407268).

Almost surely, 2316425431 is an apocalyptic number.

316425431 is a deficient number, since it is larger than the sum of its proper divisors (45203641).

316425431 is an equidigital number, since it uses as much as digits as its factorization.

316425431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45203640.

The product of its digits is 8640, while the sum is 29.

The square root of 316425431 is about 17788.3509915900. The cubic root of 316425431 is about 681.4339915904.

It can be divided in two parts, 31642 and 5431, that added together give a palindrome (37073).

The spelling of 316425431 in words is "three hundred sixteen million, four hundred twenty-five thousand, four hundred thirty-one".

Divisors: 1 7 45203633 316425431