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99886331 is a prime number
BaseRepresentation
bin1011111010000…
…10010011111011
320221221202021202
411331002103323
5201032330311
613524524415
72322006536
oct575022373
9227852252
1099886331
1151424096
122955070b
1317903b4c
14d3a1a1d
158b80e3b
hex5f424fb

99886331 has 2 divisors, whose sum is σ = 99886332. Its totient is φ = 99886330.

The previous prime is 99886313. The next prime is 99886357. The reversal of 99886331 is 13368899.

Together with previous prime (99886313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (13368899) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-99886331 is a prime.

It is a super-2 number, since 2×998863312 = 19954558241283122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (99886301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49943165 + 49943166.

It is an arithmetic number, because the mean of its divisors is an integer number (49943166).

Almost surely, 299886331 is an apocalyptic number.

99886331 is a deficient number, since it is larger than the sum of its proper divisors (1).

99886331 is an equidigital number, since it uses as much as digits as its factorization.

99886331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 47.

The square root of 99886331 is about 9994.3149340012. The cubic root of 99886331 is about 463.9829484296.

The spelling of 99886331 in words is "ninety-nine million, eight hundred eighty-six thousand, three hundred thirty-one".