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13112352 = 2532114139
BaseRepresentation
bin110010000001…
…010000100000
3220200011202200
4302001100200
511324043402
61145013200
7216311301
oct62012040
926604680
1013112352
117446560
124484200
1329413b6
141a547a8
15124021c
hexc81420

13112352 has 72 divisors (see below), whose sum is σ = 40687920. Its totient is φ = 3972480.

The previous prime is 13112347. The next prime is 13112353. The reversal of 13112352 is 25321131.

13112352 is a `hidden beast` number, since 1 + 311 + 2 + 352 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13112353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1099 + ... + 5237.

It is an arithmetic number, because the mean of its divisors is an integer number (565110).

Almost surely, 213112352 is an apocalyptic number.

13112352 is a gapful number since it is divisible by the number (12) 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 13112352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20343960).

13112352 is an abundant number, since it is smaller than the sum of its proper divisors (27575568).

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

13112352 is a wasteful number, since it uses less digits than its factorization.

13112352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166 (or 4155 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 13112352 is about 3621.0981759682. The cubic root of 13112352 is about 235.8089040054.

Adding to 13112352 its reverse (25321131), we get a palindrome (38433483).

It can be divided in two parts, 1311 and 2352, that added together give a palindrome (3663).

The spelling of 13112352 in words is "thirteen million, one hundred twelve thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 66 72 88 96 99 132 144 176 198 264 288 352 396 528 792 1056 1584 3168 4139 8278 12417 16556 24834 33112 37251 45529 49668 66224 74502 91058 99336 132448 136587 149004 182116 198672 273174 298008 364232 397344 409761 546348 596016 728464 819522 1092696 1192032 1456928 1639044 2185392 3278088 4370784 6556176 13112352