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13338672 = 243277889
BaseRepresentation
bin110010111000…
…100000110000
3221002200012220
4302320200300
511403314142
61153521040
7221243154
oct62704060
927080186
1013338672
1175905a6
124573180
1329c0409
141ab3064
1512872ec
hexcb8830

13338672 has 20 divisors (see below), whose sum is σ = 34458360. Its totient is φ = 4446208.

The previous prime is 13338671. The next prime is 13338707. The reversal of 13338672 is 27683331.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13338671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138897 + ... + 138992.

It is an arithmetic number, because the mean of its divisors is an integer number (1722918).

Almost surely, 213338672 is an apocalyptic number.

13338672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13338672 is an abundant number, since it is smaller than the sum of its proper divisors (21119688).

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

13338672 is a wasteful number, since it uses less digits than its factorization.

13338672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277900 (or 277894 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 13338672 is about 3652.2146705800. The cubic root of 13338672 is about 237.1578645225.

The spelling of 13338672 in words is "thirteen million, three hundred thirty-eight thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 277889 555778 833667 1111556 1667334 2223112 3334668 4446224 6669336 13338672