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12960056 = 237122817
BaseRepresentation
bin110001011100…
…000100111000
3220101102212002
4301130010320
511304210211
61141440132
7215105264
oct61340470
926342762
1012960056
11735209a
124410048
1328b9c95
141a150a4
15121003b
hexc5c138

12960056 has 16 divisors (see below), whose sum is σ = 24643440. Its totient is φ = 6388480.

The previous prime is 12960053. The next prime is 12960061. The reversal of 12960056 is 65006921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12960053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10841 + ... + 11976.

It is an arithmetic number, because the mean of its divisors is an integer number (1540215).

Almost surely, 212960056 is an apocalyptic number.

It is an amenable number.

12960056 is a deficient number, since it is larger than the sum of its proper divisors (11683384).

12960056 is a wasteful number, since it uses less digits than its factorization.

12960056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22894 (or 22890 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 12960056 is about 3600.0077777694. The cubic root of 12960056 is about 234.8923967915.

Adding to 12960056 its reverse (65006921), we get a palindrome (77966977).

The spelling of 12960056 in words is "twelve million, nine hundred sixty thousand, fifty-six".

Divisors: 1 2 4 8 71 142 284 568 22817 45634 91268 182536 1620007 3240014 6480028 12960056