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108680090 = 2510868009
BaseRepresentation
bin1100111101001…
…01001110011010
321120111112001112
412132211032122
5210310230330
614441220322
72456523401
oct636451632
9246445045
10108680090
115638aa62
12304916a2
131969265c
1410610638
15981b795
hex67a539a

108680090 has 8 divisors (see below), whose sum is σ = 195624180. Its totient is φ = 43472032.

The previous prime is 108680071. The next prime is 108680107. The reversal of 108680090 is 90086801.

It can be written as a sum of positive squares in 2 ways, for example, as 107889769 + 790321 = 10387^2 + 889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1086800902 = 23622723924816200, which contains 22 as substring.

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, 5433995 + ... + 5434014.

Almost surely, 2108680090 is an apocalyptic number.

108680090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108680090 is a deficient number, since it is larger than the sum of its proper divisors (86944090).

108680090 is a wasteful number, since it uses less digits than its factorization.

108680090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10868016.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 108680090 is about 10424.9743404960. The cubic root of 108680090 is about 477.2178317017.

The spelling of 108680090 in words is "one hundred eight million, six hundred eighty thousand, ninety".

Divisors: 1 2 5 10 10868009 21736018 54340045 108680090