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3131000297 is a prime number
BaseRepresentation
bin1011101010011111…
…0100010111101001
322002012112021221222
42322213310113221
522403014002142
61234404111425
7140406030515
oct27247642751
98065467858
103131000297
111367405957
12734695575
133ab8903c9
14219b87145
15134d1dbd2
hexba9f45e9

3131000297 has 2 divisors, whose sum is σ = 3131000298. Its totient is φ = 3131000296.

The previous prime is 3131000293. The next prime is 3131000309. The reversal of 3131000297 is 7920001313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3053225536 + 77774761 = 55256^2 + 8819^2 .

It is a cyclic number.

It is not a de Polignac number, because 3131000297 - 22 = 3131000293 is a prime.

It is not a weakly prime, because it can be changed into another prime (3131000293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565500148 + 1565500149.

It is an arithmetic number, because the mean of its divisors is an integer number (1565500149).

Almost surely, 23131000297 is an apocalyptic number.

It is an amenable number.

3131000297 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131000297 is an equidigital number, since it uses as much as digits as its factorization.

3131000297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 3131000297 is about 55955.3419880533. The cubic root of 3131000297 is about 1462.9440028390.

The spelling of 3131000297 in words is "three billion, one hundred thirty-one million, two hundred ninety-seven", and thus it is an aban number.