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13149930 = 2354110691
BaseRepresentation
bin110010001010…
…011011101010
3220202002022110
4302022123222
511331244210
61145503150
7216525663
oct62123352
926662273
1013149930
117471812
1244a1ab6
132955531
141a6436a
15124b420
hexc8a6ea

13149930 has 32 divisors (see below), whose sum is σ = 32332608. Its totient is φ = 3420800.

The previous prime is 13149901. The next prime is 13149931. The reversal of 13149930 is 3994131.

13149930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (13149931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4116 + ... + 6575.

It is an arithmetic number, because the mean of its divisors is an integer number (1010394).

Almost surely, 213149930 is an apocalyptic number.

13149930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13149930 is an abundant number, since it is smaller than the sum of its proper divisors (19182678).

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

13149930 is a wasteful number, since it uses less digits than its factorization.

13149930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10742.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 13149930 is about 3626.2832211508. The cubic root of 13149930 is about 236.0339532687.

The spelling of 13149930 in words is "thirteen million, one hundred forty-nine thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 41 82 123 205 246 410 615 1230 10691 21382 32073 53455 64146 106910 160365 320730 438331 876662 1314993 2191655 2629986 4383310 6574965 13149930