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13680282 = 2371129611
BaseRepresentation
bin110100001011…
…111010011010
3221202000211010
4310023322122
512000232112
61205114350
7224165130
oct64137232
927660733
1013680282
1177a4220
1246b89b6
132aaca55
141b61750
15130363c
hexd0be9a

13680282 has 32 divisors (see below), whose sum is σ = 34113024. Its totient is φ = 3553200.

The previous prime is 13680259. The next prime is 13680299. The reversal of 13680282 is 28208631.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14344 + ... + 15267.

It is an arithmetic number, because the mean of its divisors is an integer number (1066032).

Almost surely, 213680282 is an apocalyptic number.

13680282 is an abundant number, since it is smaller than the sum of its proper divisors (20432742).

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

13680282 is a wasteful number, since it uses less digits than its factorization.

13680282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29634.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 13680282 is about 3698.6865236189. The cubic root of 13680282 is about 239.1653996515.

The spelling of 13680282 in words is "thirteen million, six hundred eighty thousand, two hundred eighty-two".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 462 29611 59222 88833 177666 207277 325721 414554 621831 651442 977163 1243662 1954326 2280047 4560094 6840141 13680282