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3189890831 is a prime number
BaseRepresentation
bin1011111000100001…
…1101111100001111
322020022100020120212
42332020131330033
523013103001311
61244310233035
7142022424161
oct27610357417
98208306525
103189890831
111397679216
1275035577b
133bab3c38a
14223916931
1513a0a2c8b
hexbe21df0f

3189890831 has 2 divisors, whose sum is σ = 3189890832. Its totient is φ = 3189890830.

The previous prime is 3189890827. The next prime is 3189890833. The reversal of 3189890831 is 1380989813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3189890831 - 22 = 3189890827 is a prime.

It is a super-2 number, since 2×31898908312 = 20350807027395741122, which contains 22 as substring.

Together with 3189890833, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3189890831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3189890833) 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, 1594945415 + 1594945416.

It is an arithmetic number, because the mean of its divisors is an integer number (1594945416).

Almost surely, 23189890831 is an apocalyptic number.

3189890831 is a deficient number, since it is larger than the sum of its proper divisors (1).

3189890831 is an equidigital number, since it uses as much as digits as its factorization.

3189890831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 50.

The square root of 3189890831 is about 56479.1185395098. The cubic root of 3189890831 is about 1472.0591917988.

The spelling of 3189890831 in words is "three billion, one hundred eighty-nine million, eight hundred ninety thousand, eight hundred thirty-one".