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130954931 is a prime number
BaseRepresentation
bin1111100111000…
…11011010110011
3100010102012101122
413303203122303
5232011024211
620554452455
73150045542
oct763433263
9303365348
10130954931
1167a14418
1237a3412b
1321191333
141356c159
15b76b6db
hex7ce36b3

130954931 has 2 divisors, whose sum is σ = 130954932. Its totient is φ = 130954930.

The previous prime is 130954871. The next prime is 130954933. The reversal of 130954931 is 139459031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130954931 is a prime.

It is a super-2 number, since 2×1309549312 = 34298387906429522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 130954933, 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 = 130954891 and 130954900.

It is not a weakly prime, because it can be changed into another prime (130954933) 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, 65477465 + 65477466.

It is an arithmetic number, because the mean of its divisors is an integer number (65477466).

Almost surely, 2130954931 is an apocalyptic number.

130954931 is a deficient number, since it is larger than the sum of its proper divisors (1).

130954931 is an equidigital number, since it uses as much as digits as its factorization.

130954931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 130954931 is about 11443.5541244842. The cubic root of 130954931 is about 507.8170583026.

The spelling of 130954931 in words is "one hundred thirty million, nine hundred fifty-four thousand, nine hundred thirty-one".