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108857381 = 437334679
BaseRepresentation
bin1100111110100…
…00100000100101
321120211112020212
412133100200211
5210331414011
614445105205
72461162313
oct637204045
9246745225
10108857381
11564a1186
1230558205
1319725269
14106590b3
15985408b
hex67d0825

108857381 has 8 divisors (see below), whose sum is σ = 112918080. Its totient is φ = 104866272.

The previous prime is 108857369. The next prime is 108857383. The reversal of 108857381 is 183758801.

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 108857381 - 218 = 108595237 is a prime.

It is a super-2 number, since 2×1088573812 = 23699858796358322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108857383) 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, 14201 + ... + 20478.

It is an arithmetic number, because the mean of its divisors is an integer number (14114760).

Almost surely, 2108857381 is an apocalyptic number.

It is an amenable number.

108857381 is a deficient number, since it is larger than the sum of its proper divisors (4060699).

108857381 is an equidigital number, since it uses as much as digits as its factorization.

108857381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34795.

The product of its (nonzero) digits is 53760, while the sum is 41.

The square root of 108857381 is about 10433.4740618837. The cubic root of 108857381 is about 477.4771875837.

The spelling of 108857381 in words is "one hundred eight million, eight hundred fifty-seven thousand, three hundred eighty-one".

Divisors: 1 43 73 3139 34679 1491197 2531567 108857381