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14007656 = 23133672
BaseRepresentation
bin110101011011…
…110101101000
3222100122220002
4311123311220
512041221111
61220122132
7230030435
oct65336550
928318802
1014007656
1179a8183
124836348
132b95a70
141c08b8c
15136a63b
hexd5bd68

14007656 has 24 divisors (see below), whose sum is σ = 28361970. Its totient is φ = 6447456.

The previous prime is 14007599. The next prime is 14007659. The reversal of 14007656 is 65670041.

It can be written as a sum of positive squares in only one way, i.e., 13468900 + 538756 = 3670^2 + 734^2 .

It is a super-2 number, since 2×140076562 = 392428853228672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14007659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37985 + ... + 38351.

Almost surely, 214007656 is an apocalyptic number.

It is an amenable number.

14007656 is an abundant number, since it is smaller than the sum of its proper divisors (14354314).

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

14007656 is an equidigital number, since it uses as much as digits as its factorization.

14007656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 14007656 is about 3742.6803229771. The cubic root of 14007656 is about 241.0581518619.

Adding to 14007656 its reverse (65670041), we get a palindrome (79677697).

The spelling of 14007656 in words is "fourteen million, seven thousand, six hundred fifty-six".

Divisors: 1 2 4 8 13 26 52 104 367 734 1468 2936 4771 9542 19084 38168 134689 269378 538756 1077512 1750957 3501914 7003828 14007656