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13056072 = 233661823
BaseRepresentation
bin110001110011…
…100001001000
3220120022120020
4301303201020
511320243242
61143500440
7215655231
oct61634110
926508506
1013056072
117408247
124457720
1329218b3
141a3c088
15122d6ec
hexc73848

13056072 has 32 divisors (see below), whose sum is σ = 32729280. Its totient is φ = 4340160.

The previous prime is 13056037. The next prime is 13056077. The reversal of 13056072 is 27065031.

It is a super-2 number, since 2×130560722 = 340922032138368, 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 (13056077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15453 + ... + 16275.

It is an arithmetic number, because the mean of its divisors is an integer number (1022790).

Almost surely, 213056072 is an apocalyptic number.

13056072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13056072 is an abundant number, since it is smaller than the sum of its proper divisors (19673208).

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

13056072 is a wasteful number, since it uses less digits than its factorization.

13056072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493 (or 1489 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 13056072 is about 3613.3186961573. The cubic root of 13056072 is about 235.4710455249.

The spelling of 13056072 in words is "thirteen million, fifty-six thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 661 823 1322 1646 1983 2469 2644 3292 3966 4938 5288 6584 7932 9876 15864 19752 544003 1088006 1632009 2176012 3264018 4352024 6528036 13056072