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13251120 = 243555213
BaseRepresentation
bin110010100011…
…001000110000
3220221020010020
4302203020300
511343013440
61152003440
7220430001
oct62431060
926836106
1013251120
117530843
124530580
13298c5cc
141a8d1a8
15126b3d0
hexca3230

13251120 has 40 divisors (see below), whose sum is σ = 41079216. Its totient is φ = 3533568.

The previous prime is 13251107. The next prime is 13251131. The reversal of 13251120 is 2115231.

Adding to 13251120 its reverse (2115231), we get a palindrome (15366351).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13251120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27367 + ... + 27846.

Almost surely, 213251120 is an apocalyptic number.

13251120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13251120 is an abundant number, since it is smaller than the sum of its proper divisors (27828096).

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

13251120 is a wasteful number, since it uses less digits than its factorization.

13251120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55229 (or 55223 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 13251120 is about 3640.2087852210. The cubic root of 13251120 is about 236.6378417141.

The spelling of 13251120 in words is "thirteen million, two hundred fifty-one thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 55213 110426 165639 220852 276065 331278 441704 552130 662556 828195 883408 1104260 1325112 1656390 2208520 2650224 3312780 4417040 6625560 13251120