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12748844 = 2217473989
BaseRepresentation
bin110000101000…
…100000101100
3212222201010102
4300220200230
511230430334
61133130232
7213235433
oct60504054
925881112
1012748844
117218439
124329978
132844ac4
14199c11a
1511bc67e
hexc2882c

12748844 has 24 divisors (see below), whose sum is σ = 24131520. Its totient is φ = 5870336.

The previous prime is 12748837. The next prime is 12748847. The reversal of 12748844 is 44884721.

It is a happy number.

12748844 is nontrivially palindromic in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 12748798 and 12748807.

It is not an unprimeable number, because it can be changed into a prime (12748847) 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, 1202 + ... + 5190.

It is an arithmetic number, because the mean of its divisors is an integer number (1005480).

Almost surely, 212748844 is an apocalyptic number.

It is an amenable number.

12748844 is a deficient number, since it is larger than the sum of its proper divisors (11382676).

12748844 is a wasteful number, since it uses less digits than its factorization.

12748844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057 (or 4055 counting only the distinct ones).

The product of its digits is 57344, while the sum is 38.

The square root of 12748844 is about 3570.5523382244. The cubic root of 12748844 is about 233.6093757965.

The spelling of 12748844 in words is "twelve million, seven hundred forty-eight thousand, eight hundred forty-four".

Divisors: 1 2 4 17 34 47 68 94 188 799 1598 3196 3989 7978 15956 67813 135626 187483 271252 374966 749932 3187211 6374422 12748844