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13251200 = 275241101
BaseRepresentation
bin110010100011…
…001010000000
3220221020020012
4302203022000
511343014300
61152004052
7220430144
oct62431200
926836205
1013251200
117530906
124530628
13298c661
141a8d224
15126b435
hexca3280

13251200 has 96 divisors (see below), whose sum is σ = 33865020. Its totient is φ = 5120000.

The previous prime is 13251169. The next prime is 13251233. The reversal of 13251200 is 215231.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4910656 + 8340544 = 2216^2 + 2888^2 .

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131150 + ... + 131250.

Almost surely, 213251200 is an apocalyptic number.

13251200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13251200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16932510).

13251200 is an abundant number, since it is smaller than the sum of its proper divisors (20613820).

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

13251200 is a wasteful number, since it uses less digits than its factorization.

13251200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 13251200 is about 3640.2197735851. The cubic root of 13251200 is about 236.6383179252.

Adding to 13251200 its reverse (215231), we get a palindrome (13466431).

The spelling of 13251200 in words is "thirteen million, two hundred fifty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 41 50 64 80 82 100 101 128 160 164 200 202 205 320 328 400 404 410 505 640 656 800 808 820 1010 1025 1312 1600 1616 1640 2020 2050 2525 2624 3200 3232 3280 4040 4100 4141 5050 5248 6464 6560 8080 8200 8282 10100 12928 13120 16160 16400 16564 20200 20705 26240 32320 32800 33128 40400 41410 64640 65600 66256 80800 82820 103525 131200 132512 161600 165640 207050 265024 323200 331280 414100 530048 662560 828200 1325120 1656400 2650240 3312800 6625600 13251200