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18301460431 is a prime number
BaseRepresentation
bin10001000010110110…
…100001111111001111
31202020110102111222211
4101002312201333033
5244440133213211
612224011451251
71215345563332
oct210266417717
952213374884
1018301460431
117841774111
123669156b27
131958820037
14c588a0619
15721aa4e21
hex442da1fcf

18301460431 has 2 divisors, whose sum is σ = 18301460432. Its totient is φ = 18301460430.

The previous prime is 18301460417. The next prime is 18301460473. The reversal of 18301460431 is 13406410381.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-18301460431 is a prime.

It is a super-2 number, since 2×183014604312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18301460393 and 18301460402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18301460491) 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, 9150730215 + 9150730216.

It is an arithmetic number, because the mean of its divisors is an integer number (9150730216).

Almost surely, 218301460431 is an apocalyptic number.

18301460431 is a deficient number, since it is larger than the sum of its proper divisors (1).

18301460431 is an equidigital number, since it uses as much as digits as its factorization.

18301460431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 18301460431 in words is "eighteen billion, three hundred one million, four hundred sixty thousand, four hundred thirty-one".