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108774993 = 31743193257
BaseRepresentation
bin1100111101111…
…00011001010001
321120200100020110
412132330121101
5210321244433
614443231533
72460400155
oct636743121
9246610213
10108774993
1156445298
12305185a9
13196c6902
1410637065
159839963
hex67bc651

108774993 has 32 divisors (see below), whose sum is σ = 158564736. Its totient is φ = 66060288.

The previous prime is 108774989. The next prime is 108775031. The reversal of 108774993 is 399477801.

It is not a de Polignac number, because 108774993 - 22 = 108774989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108774973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 423121 + ... + 423377.

It is an arithmetic number, because the mean of its divisors is an integer number (4955148).

Almost surely, 2108774993 is an apocalyptic number.

It is an amenable number.

108774993 is a deficient number, since it is larger than the sum of its proper divisors (49789743).

108774993 is a wasteful number, since it uses less digits than its factorization.

108774993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 108774993 is about 10429.5250610946. The cubic root of 108774993 is about 477.3566986814.

The spelling of 108774993 in words is "one hundred eight million, seven hundred seventy-four thousand, nine hundred ninety-three".

Divisors: 1 3 17 43 51 129 193 257 579 731 771 2193 3281 4369 8299 9843 11051 13107 24897 33153 49601 141083 148803 187867 423249 563601 843217 2132843 2529651 6398529 36258331 108774993