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13100918 = 2193071123
BaseRepresentation
bin110001111110…
…011101110110
3220122121002012
4301332131312
511323212133
61144444222
7216233045
oct61763566
926577065
1013100918
117438a06
124479672
13293912c
141a5055c
15123bb48
hexc7e776

13100918 has 16 divisors (see below), whose sum is σ = 20771520. Its totient is φ = 6179976.

The previous prime is 13100903. The next prime is 13100929. The reversal of 13100918 is 81900131.

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 13100893 and 13100902.

It is a congruent 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, 11105 + ... + 12227.

It is an arithmetic number, because the mean of its divisors is an integer number (1298220).

Almost surely, 213100918 is an apocalyptic number.

13100918 is a deficient number, since it is larger than the sum of its proper divisors (7670602).

13100918 is a wasteful number, since it uses less digits than its factorization.

13100918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 13100918 is about 3619.5190288214. The cubic root of 13100918 is about 235.7403421106.

The spelling of 13100918 in words is "thirteen million, one hundred thousand, nine hundred eighteen".

Divisors: 1 2 19 38 307 614 1123 2246 5833 11666 21337 42674 344761 689522 6550459 13100918