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13147152 = 243273899
BaseRepresentation
bin110010001001…
…110000010000
3220201221111120
4302021300100
511331202102
61145442240
7216514614
oct62116020
926657446
1013147152
11746a717
1244a0380
1329541a5
141a63344
15124a6bc
hexc89c10

13147152 has 20 divisors (see below), whose sum is σ = 33963600. Its totient is φ = 4382368.

The previous prime is 13147133. The next prime is 13147157. The reversal of 13147152 is 25174131.

It is a super-2 number, since 2×131471522 = 345695211422208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (13147157) 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, 136902 + ... + 136997.

It is an arithmetic number, because the mean of its divisors is an integer number (1698180).

Almost surely, 213147152 is an apocalyptic number.

13147152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13147152 is an abundant number, since it is smaller than the sum of its proper divisors (20816448).

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

13147152 is a wasteful number, since it uses less digits than its factorization.

13147152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273910 (or 273904 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 13147152 is about 3625.9001640972. The cubic root of 13147152 is about 236.0173309115.

The spelling of 13147152 in words is "thirteen million, one hundred forty-seven thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 273899 547798 821697 1095596 1643394 2191192 3286788 4382384 6573576 13147152