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13149508 = 224796863
BaseRepresentation
bin110010001010…
…010101000100
3220202001201211
4302022111010
511331241013
61145501204
7216524521
oct62122504
926661654
1013149508
117471469
1244a1804
132955298
141a64148
15124b23d
hexc8a544

13149508 has 12 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 6560072.

The previous prime is 13149497. The next prime is 13149509. The reversal of 13149508 is 80594131.

It is a self number, because there is not a number n which added to its sum of digits gives 13149508.

It is not an unprimeable number, because it can be changed into a prime (13149509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516 + ... + 5347.

It is an arithmetic number, because the mean of its divisors is an integer number (1921920).

Almost surely, 213149508 is an apocalyptic number.

It is an amenable number.

13149508 is a deficient number, since it is larger than the sum of its proper divisors (9913532).

13149508 is a wasteful number, since it uses less digits than its factorization.

13149508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7346 (or 7344 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 13149508 is about 3626.2250343849. The cubic root of 13149508 is about 236.0314283530.

The spelling of 13149508 in words is "thirteen million, one hundred forty-nine thousand, five hundred eight".

Divisors: 1 2 4 479 958 1916 6863 13726 27452 3287377 6574754 13149508