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331230037 is a prime number
BaseRepresentation
bin10011101111100…
…010101101010101
3212002021020012011
4103233202231111
51134243330122
652511224221
711131260145
oct2357425525
9762236164
10331230037
1115aa75036
1292b18071
1353813908
1431dc2925
151e12c377
hex13be2b55

331230037 has 2 divisors, whose sum is σ = 331230038. Its totient is φ = 331230036.

The previous prime is 331229959. The next prime is 331230041. The reversal of 331230037 is 730032133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210801361 + 120428676 = 14519^2 + 10974^2 .

It is a cyclic number.

It is not a de Polignac number, because 331230037 - 211 = 331227989 is a prime.

It is a super-2 number, since 2×3312300372 = 219426674822042738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331230047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165615018 + 165615019.

It is an arithmetic number, because the mean of its divisors is an integer number (165615019).

Almost surely, 2331230037 is an apocalyptic number.

It is an amenable number.

331230037 is a deficient number, since it is larger than the sum of its proper divisors (1).

331230037 is an equidigital number, since it uses as much as digits as its factorization.

331230037 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 22.

The square root of 331230037 is about 18199.7262891506. The cubic root of 331230037 is about 691.8998519966.

The spelling of 331230037 in words is "three hundred thirty-one million, two hundred thirty thousand, thirty-seven".