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13539168 = 253253887
BaseRepresentation
bin110011101001…
…011101100000
3221110212020200
4303221131200
511431223133
61202105200
7223036536
oct63513540
927425220
1013539168
1177081a5
12464b200
132a60756
141b26156
1512c6913
hexce9760

13539168 has 72 divisors (see below), whose sum is σ = 39272688. Its totient is φ = 4422912.

The previous prime is 13539161. The next prime is 13539179. The reversal of 13539168 is 86193531.

It is a happy number.

13539168 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13539161) 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, 14821 + ... + 15707.

It is an arithmetic number, because the mean of its divisors is an integer number (545454).

Almost surely, 213539168 is an apocalyptic number.

13539168 is a gapful number since it is divisible by the number (18) 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 13539168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19636344).

13539168 is an abundant number, since it is smaller than the sum of its proper divisors (25733520).

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

13539168 is a wasteful number, since it uses less digits than its factorization.

13539168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 945 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 13539168 is about 3679.5608433616. The cubic root of 13539168 is about 238.3402144274.

The spelling of 13539168 in words is "thirteen million, five hundred thirty-nine thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 53 72 96 106 144 159 212 288 318 424 477 636 848 887 954 1272 1696 1774 1908 2544 2661 3548 3816 5088 5322 7096 7632 7983 10644 14192 15264 15966 21288 28384 31932 42576 47011 63864 85152 94022 127728 141033 188044 255456 282066 376088 423099 564132 752176 846198 1128264 1504352 1692396 2256528 3384792 4513056 6769584 13539168