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108194917 = 223653743
BaseRepresentation
bin1100111001011…
…10110001100101
321112120212112011
412130232301211
5210144214132
614422554221
72452433035
oct634566145
9245525464
10108194917
1156089496
1230298971
131955287c
14105258c5
159772b47
hex672ec65

108194917 has 8 divisors (see below), whose sum is σ = 108993024. Its totient is φ = 107400048.

The previous prime is 108194887. The next prime is 108194971. The reversal of 108194917 is 719491801.

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

It is a cyclic number.

It is not a de Polignac number, because 108194917 - 211 = 108192869 is a prime.

It is a super-2 number, since 2×1081949172 = 23412280129273778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108194917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108194117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145248 + ... + 145990.

It is an arithmetic number, because the mean of its divisors is an integer number (13624128).

Almost surely, 2108194917 is an apocalyptic number.

It is an amenable number.

108194917 is a deficient number, since it is larger than the sum of its proper divisors (798107).

108194917 is an equidigital number, since it uses as much as digits as its factorization.

108194917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 108194917 is about 10401.6785664622. The cubic root of 108194917 is about 476.5066354948.

The spelling of 108194917 in words is "one hundred eight million, one hundred ninety-four thousand, nine hundred seventeen".

Divisors: 1 223 653 743 145619 165689 485179 108194917