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13966930 = 256612113
BaseRepresentation
bin110101010001…
…111001010010
3222021121000201
4311101321102
512033420210
61215205414
7226500625
oct65217122
928247021
1013966930
11797a61a
12481686a
132b80373
141bd7dbc
15135d53a
hexd51e52

13966930 has 16 divisors (see below), whose sum is σ = 25190424. Its totient is φ = 5575680.

The previous prime is 13966879. The next prime is 13966949. The reversal of 13966930 is 3966931.

13966930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8392609 + 5574321 = 2897^2 + 2361^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13966930.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5554 + ... + 7666.

Almost surely, 213966930 is an apocalyptic number.

13966930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13966930 is a deficient number, since it is larger than the sum of its proper divisors (11223494).

13966930 is a wasteful number, since it uses less digits than its factorization.

13966930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 13966930 is about 3737.2356093776. The cubic root of 13966930 is about 240.8243067887.

Subtracting from 13966930 its reverse (3966931), we obtain a palindrome (9999999).

The spelling of 13966930 in words is "thirteen million, nine hundred sixty-six thousand, nine hundred thirty".

Divisors: 1 2 5 10 661 1322 2113 3305 4226 6610 10565 21130 1396693 2793386 6983465 13966930