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100105079 is a prime number
BaseRepresentation
bin1011111011101…
…11101101110111
320222100212100112
411331313231313
5201111330304
613533333235
72323610354
oct575675567
9228325315
10100105079
1151563478
122963721b
131797c599
14d41b62b
158bc5b6e
hex5f77b77

100105079 has 2 divisors, whose sum is σ = 100105080. Its totient is φ = 100105078.

The previous prime is 100105063. The next prime is 100105097. The reversal of 100105079 is 970501001.

Together with next prime (100105097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100105079 - 24 = 100105063 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100105009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50052539 + 50052540.

It is an arithmetic number, because the mean of its divisors is an integer number (50052540).

Almost surely, 2100105079 is an apocalyptic number.

100105079 is a deficient number, since it is larger than the sum of its proper divisors (1).

100105079 is an equidigital number, since it uses as much as digits as its factorization.

100105079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 100105079 is about 10005.2525705251. The cubic root of 100105079 is about 464.3214042871.

The spelling of 100105079 in words is "one hundred million, one hundred five thousand, seventy-nine".