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108031189 = 741936833
BaseRepresentation
bin1100111000001…
…10110011010101
321112021112221011
412130012303111
5210123444224
614415252221
72451151510
oct634066325
9245245834
10108031189
1155a87482
123021a071
13194c61a6
14104c1d77
15973e394
hex6706cd5

108031189 has 8 divisors (see below), whose sum is σ = 123762240. Its totient is φ = 92374656.

The previous prime is 108031181. The next prime is 108031193. The reversal of 108031189 is 981130801.

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 108031189 - 23 = 108031181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108031189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108031181) 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, 15484 + ... + 21349.

It is an arithmetic number, because the mean of its divisors is an integer number (15470280).

Almost surely, 2108031189 is an apocalyptic number.

It is an amenable number.

108031189 is a deficient number, since it is larger than the sum of its proper divisors (15731051).

108031189 is an equidigital number, since it uses as much as digits as its factorization.

108031189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37259.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 108031189 is about 10393.8053185539. The cubic root of 108031189 is about 476.2661532629.

The spelling of 108031189 in words is "one hundred eight million, thirty-one thousand, one hundred eighty-nine".

Divisors: 1 7 419 2933 36833 257831 15433027 108031189