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13100900 = 2252131009
BaseRepresentation
bin110001111110…
…011101100100
3220122121001112
4301332131210
511323212100
61144444152
7216233021
oct61763544
926577045
1013100900
11743899a
124479658
132939117
141a50548
15123bb35
hexc7e764

13100900 has 18 divisors (see below), whose sum is σ = 28429170. Its totient is φ = 5240320.

The previous prime is 13100887. The next prime is 13100903. The reversal of 13100900 is 900131.

It can be written as a sum of positive squares in 3 ways, for example, as 2184484 + 10916416 = 1478^2 + 3304^2 .

It is not an unprimeable number, because it can be changed into a prime (13100903) 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, 65405 + ... + 65604.

Almost surely, 213100900 is an apocalyptic number.

13100900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13100900 is an abundant number, since it is smaller than the sum of its proper divisors (15328270).

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

13100900 is a wasteful number, since it uses less digits than its factorization.

13100900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131023 (or 131016 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 13100900 is about 3619.5165423023. The cubic root of 13100900 is about 235.7402341454.

The spelling of 13100900 in words is "thirteen million, one hundred thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 131009 262018 524036 655045 1310090 2620180 3275225 6550450 13100900