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13065672 = 233544403
BaseRepresentation
bin110001110101…
…110111001000
3220120210201210
4301311313020
511321100142
61144013120
7216025224
oct61656710
926523653
1013065672
117414484
1244611a0
132926089
141a41784
15123149c
hexc75dc8

13065672 has 16 divisors (see below), whose sum is σ = 32664240. Its totient is φ = 4355216.

The previous prime is 13065659. The next prime is 13065709. The reversal of 13065672 is 27656031.

It is a super-3 number, since 3×130656723 (a number of 22 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 272178 + ... + 272225.

It is an arithmetic number, because the mean of its divisors is an integer number (2041515).

Almost surely, 213065672 is an apocalyptic number.

13065672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13065672 is an abundant number, since it is smaller than the sum of its proper divisors (19598568).

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

13065672 is a wasteful number, since it uses less digits than its factorization.

13065672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544412 (or 544408 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 13065672 is about 3614.6468707192. The cubic root of 13065672 is about 235.5287445587.

The spelling of 13065672 in words is "thirteen million, sixty-five thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 544403 1088806 1633209 2177612 3266418 4355224 6532836 13065672