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312676031 is a prime number
BaseRepresentation
bin10010101000110…
…000111010111111
3210210100120212202
4102220300322333
51120021113111
651005422115
710514462633
oct2250607277
9723316782
10312676031
11150552148
128886a93b
134ca18705
142d752dc3
151c6b4b3b
hex12a30ebf

312676031 has 2 divisors, whose sum is σ = 312676032. Its totient is φ = 312676030.

The previous prime is 312675973. The next prime is 312676033. The reversal of 312676031 is 130676213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312676031 - 226 = 245567167 is a prime.

It is a super-2 number, since 2×3126760312 = 195532600723825922, which contains 22 as substring.

Together with 312676033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 312675985 and 312676003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312676033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156338015 + 156338016.

It is an arithmetic number, because the mean of its divisors is an integer number (156338016).

Almost surely, 2312676031 is an apocalyptic number.

312676031 is a deficient number, since it is larger than the sum of its proper divisors (1).

312676031 is an equidigital number, since it uses as much as digits as its factorization.

312676031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 312676031 is about 17682.6477372593. The cubic root of 312676031 is about 678.7317993372.

The spelling of 312676031 in words is "three hundred twelve million, six hundred seventy-six thousand, thirty-one".