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109555960 = 2352738899
BaseRepresentation
bin1101000011110…
…11000011111000
321122011000112011
412201323003320
5211021242320
614512055304
72500132063
oct641730370
9248130464
10109555960
1156929018
1230834534
131990b217
141079b8da
15994105a
hex687b0f8

109555960 has 16 divisors (see below), whose sum is σ = 246501000. Its totient is φ = 43822368.

The previous prime is 109555951. The next prime is 109556017. The reversal of 109555960 is 69555901.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 2738899 = 109555960 / (1 + 0 + 9 + 5 + 5 + 5 + 9 + 6 + 0).

It is a congruent 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, 1369410 + ... + 1369489.

Almost surely, 2109555960 is an apocalyptic number.

109555960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109555960 is an abundant number, since it is smaller than the sum of its proper divisors (136945040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109555960 is a wasteful number, since it uses less digits than its factorization.

109555960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738910 (or 2738906 counting only the distinct ones).

The product of its (nonzero) digits is 60750, while the sum is 40.

The square root of 109555960 is about 10466.8982989231. The cubic root of 109555960 is about 478.4963943930.

The spelling of 109555960 in words is "one hundred nine million, five hundred fifty-five thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 2738899 5477798 10955596 13694495 21911192 27388990 54777980 109555960