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13680850 = 252273617
BaseRepresentation
bin110100001100…
…000011010010
3221202001121011
4310030003102
512000241400
61205121134
7224166601
oct64140322
927661534
1013680850
1177a4697
1246b91aa
132ab00a1
141b61a38
1513038ba
hexd0c0d2

13680850 has 12 divisors (see below), whose sum is σ = 25446474. Its totient is φ = 5472320.

The previous prime is 13680829. The next prime is 13680853. The reversal of 13680850 is 5808631.

It can be written as a sum of positive squares in 3 ways, for example, as 7634169 + 6046681 = 2763^2 + 2459^2 .

It is not an unprimeable number, because it can be changed into a prime (13680853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 136759 + ... + 136858.

Almost surely, 213680850 is an apocalyptic number.

13680850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13680850 is a deficient number, since it is larger than the sum of its proper divisors (11765624).

13680850 is a wasteful number, since it uses less digits than its factorization.

13680850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273629 (or 273624 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 13680850 is about 3698.7633068365. The cubic root of 13680850 is about 239.1687096239.

The spelling of 13680850 in words is "thirteen million, six hundred eighty thousand, eight hundred fifty".

Divisors: 1 2 5 10 25 50 273617 547234 1368085 2736170 6840425 13680850