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3131002379 is a prime number
BaseRepresentation
bin1011101010011111…
…0100111000001011
322002012112101211002
42322213310320023
522403014034004
61234404125215
7140406036551
oct27247647013
98065471732
103131002379
11136740747a
1273469680b
133ab89133b
14219b87bd1
15134d1e61e
hexba9f4e0b

3131002379 has 2 divisors, whose sum is σ = 3131002380. Its totient is φ = 3131002378.

The previous prime is 3131002367. The next prime is 3131002447. The reversal of 3131002379 is 9732001313.

It is a weak prime.

It is an emirp because it is prime and its reverse (9732001313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3131002379 is a prime.

It is not a weakly prime, because it can be changed into another prime (3131002309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565501189 + 1565501190.

It is an arithmetic number, because the mean of its divisors is an integer number (1565501190).

Almost surely, 23131002379 is an apocalyptic number.

3131002379 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131002379 is an equidigital number, since it uses as much as digits as its factorization.

3131002379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 3131002379 is about 55955.3605921720. The cubic root of 3131002379 is about 1462.9443271069.

The spelling of 3131002379 in words is "three billion, one hundred thirty-one million, two thousand, three hundred seventy-nine".