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13680132 = 2234492539
BaseRepresentation
bin110100001011…
…111000000100
3221202000121120
4310023320010
512000231012
61205113540
7224164524
oct64137004
927660546
1013680132
1177a40a4
1246b88b0
132aac96b
141b61684
15130358c
hexd0be04

13680132 has 24 divisors (see below), whose sum is σ = 32004000. Its totient is φ = 4548096.

The previous prime is 13680113. The next prime is 13680167. The reversal of 13680132 is 23108631.

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, 4119 + ... + 6657.

It is an arithmetic number, because the mean of its divisors is an integer number (1333500).

Almost surely, 213680132 is an apocalyptic number.

13680132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13680132 is an abundant number, since it is smaller than the sum of its proper divisors (18323868).

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

13680132 is a wasteful number, since it uses less digits than its factorization.

13680132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995 (or 2993 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 13680132 is about 3698.6662460947. Note that the first 3 decimals coincide. The cubic root of 13680132 is about 239.1645255237.

Adding to 13680132 its reverse (23108631), we get a palindrome (36788763).

The spelling of 13680132 in words is "thirteen million, six hundred eighty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 449 898 1347 1796 2539 2694 5078 5388 7617 10156 15234 30468 1140011 2280022 3420033 4560044 6840066 13680132