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13814660 = 2251096337
BaseRepresentation
bin110100101100…
…101110000100
3221222212011002
4310230232010
512014032120
61212032432
7225264656
oct64545604
927885132
1013814660
117886182
124762718
132b28c72
141b986d6
15132d375
hexd2cb84

13814660 has 24 divisors (see below), whose sum is σ = 29281560. Its totient is φ = 5474304.

The previous prime is 13814639. The next prime is 13814677. The reversal of 13814660 is 6641831.

It can be written as a sum of positive squares in 4 ways, for example, as 1592644 + 12222016 = 1262^2 + 3496^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989 + ... + 5348.

It is an arithmetic number, because the mean of its divisors is an integer number (1220065).

Almost surely, 213814660 is an apocalyptic number.

13814660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13814660 is an abundant number, since it is smaller than the sum of its proper divisors (15466900).

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

13814660 is a wasteful number, since it uses less digits than its factorization.

13814660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455 (or 6453 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 13814660 is about 3716.8077701167. The cubic root of 13814660 is about 239.9459368966.

The spelling of 13814660 in words is "thirteen million, eight hundred fourteen thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 6337 12674 25348 31685 63370 126740 690733 1381466 2762932 3453665 6907330 13814660