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102791913 = 374894853
BaseRepresentation
bin1100010000001…
…11101011101001
321011102100222220
412020013223221
5202303320123
614111104253
72355500610
oct610075351
9234370886
10102791913
11530290a4
122a512089
13183b0523
14d91a877
159056ce3
hex6207ae9

102791913 has 8 divisors (see below), whose sum is σ = 156635328. Its totient is φ = 58738224.

The previous prime is 102791873. The next prime is 102791947. The reversal of 102791913 is 319197201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102791913 - 218 = 102529769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102791413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2447406 + ... + 2447447.

It is an arithmetic number, because the mean of its divisors is an integer number (19579416).

Almost surely, 2102791913 is an apocalyptic number.

It is an amenable number.

102791913 is a deficient number, since it is larger than the sum of its proper divisors (53843415).

102791913 is an equidigital number, since it uses as much as digits as its factorization.

102791913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4894863.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 102791913 is about 10138.6346713944. The cubic root of 102791913 is about 468.4389327472.

The spelling of 102791913 in words is "one hundred two million, seven hundred ninety-one thousand, nine hundred thirteen".

Divisors: 1 3 7 21 4894853 14684559 34263971 102791913