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13917380 = 2254316183
BaseRepresentation
bin110101000101…
…110011000100
3222012002001112
4311011303010
512030324010
61214144152
7226203311
oct65056304
928162045
1013917380
117946374
1247b2058
132b63949
141bc3d08
15134da05
hexd45cc4

13917380 has 24 divisors (see below), whose sum is σ = 29908032. Its totient is φ = 5437152.

The previous prime is 13917359. The next prime is 13917391. The reversal of 13917380 is 8371931.

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, 7232 + ... + 8951.

It is an arithmetic number, because the mean of its divisors is an integer number (1246168).

Almost surely, 213917380 is an apocalyptic number.

13917380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13917380 is an abundant number, since it is smaller than the sum of its proper divisors (15990652).

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

13917380 is a wasteful number, since it uses less digits than its factorization.

13917380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16235 (or 16233 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 13917380 is about 3730.6004878571. The cubic root of 13917380 is about 240.5391812928.

The spelling of 13917380 in words is "thirteen million, nine hundred seventeen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 16183 32366 64732 80915 161830 323660 695869 1391738 2783476 3479345 6958690 13917380