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108385745 = 5131667473
BaseRepresentation
bin1100111010111…
…01010111010001
321112221120021212
412131131113101
5210221320440
614431025505
72454156266
oct635352721
9245846255
10108385745
11561a98a6
123036b295
13195bb6a0
141057526d
1597ae465
hex675d5d1

108385745 has 8 divisors (see below), whose sum is σ = 140067816. Its totient is φ = 80038656.

The previous prime is 108385733. The next prime is 108385751. The reversal of 108385745 is 547583801.

It can be written as a sum of positive squares in 4 ways, for example, as 2027776 + 106357969 = 1424^2 + 10313^2 .

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 108385745 - 220 = 107337169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833672 + ... + 833801.

It is an arithmetic number, because the mean of its divisors is an integer number (17508477).

Almost surely, 2108385745 is an apocalyptic number.

It is an amenable number.

108385745 is a deficient number, since it is larger than the sum of its proper divisors (31682071).

108385745 is a wasteful number, since it uses less digits than its factorization.

108385745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667491.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 108385745 is about 10410.8474679058. The cubic root of 108385745 is about 476.7866159953.

The spelling of 108385745 in words is "one hundred eight million, three hundred eighty-five thousand, seven hundred forty-five".

Divisors: 1 5 13 65 1667473 8337365 21677149 108385745