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108668585 = 521733717
BaseRepresentation
bin1100111101000…
…10011010101001
321120110221021102
412132202122221
5210304343320
614441051145
72456445014
oct636423251
9246427242
10108668585
1156382353
1230486ab5
131968a34c
141060a37b
159818175
hex67a26a9

108668585 has 4 divisors (see below), whose sum is σ = 130402308. Its totient is φ = 86934864.

The previous prime is 108668563. The next prime is 108668621. The reversal of 108668585 is 585866801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19044496 + 89624089 = 4364^2 + 9467^2 .

It is a cyclic number.

It is not a de Polignac number, because 108668585 - 222 = 104474281 is a prime.

It is a super-2 number, since 2×1086685852 = 23617722731804450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10866854 + ... + 10866863.

It is an arithmetic number, because the mean of its divisors is an integer number (32600577).

Almost surely, 2108668585 is an apocalyptic number.

It is an amenable number.

108668585 is a deficient number, since it is larger than the sum of its proper divisors (21733723).

108668585 is an equidigital number, since it uses as much as digits as its factorization.

108668585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21733722.

The product of its (nonzero) digits is 460800, while the sum is 47.

The square root of 108668585 is about 10424.4225259724. The cubic root of 108668585 is about 477.2009914970.

The spelling of 108668585 in words is "one hundred eight million, six hundred sixty-eight thousand, five hundred eighty-five".

Divisors: 1 5 21733717 108668585