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80995151 is a prime number
BaseRepresentation
bin1001101001111…
…10001101001111
312122101222110102
410310332031033
5131213321101
612012001315
72002306316
oct464761517
9178358412
1080995151
11417a0946
122316023b
1313a1b333
14aa8527d
15719d86b
hex4d3e34f

80995151 has 2 divisors, whose sum is σ = 80995152. Its totient is φ = 80995150.

The previous prime is 80995133. The next prime is 80995153. The reversal of 80995151 is 15159908.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80995151 - 26 = 80995087 is a prime.

Together with 80995153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80995153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40497575 + 40497576.

It is an arithmetic number, because the mean of its divisors is an integer number (40497576).

Almost surely, 280995151 is an apocalyptic number.

80995151 is a deficient number, since it is larger than the sum of its proper divisors (1).

80995151 is an equidigital number, since it uses as much as digits as its factorization.

80995151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 38.

The square root of 80995151 is about 8999.7306070793. The cubic root of 80995151 is about 432.6662370086. Note that the first 3 decimals are identical.

The spelling of 80995151 in words is "eighty million, nine hundred ninety-five thousand, one hundred fifty-one".