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13371945 = 3517411279
BaseRepresentation
bin110011000000…
…101000101001
3221011100212020
4303000220221
511410400240
61154335053
7221442156
oct63005051
927140766
1013371945
1176035a4
12458a489
132a025c2
141ac122d
1512920d0
hexcc0a29

13371945 has 32 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 6543360.

The previous prime is 13371913. The next prime is 13371971. The reversal of 13371945 is 54917331.

13371945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13371945 - 25 = 13371913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9816 + ... + 11094.

It is an arithmetic number, because the mean of its divisors is an integer number (725760).

Almost surely, 213371945 is an apocalyptic number.

13371945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13371945 is a deficient number, since it is larger than the sum of its proper divisors (9852375).

13371945 is a wasteful number, since it uses less digits than its factorization.

13371945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345.

The product of its digits is 11340, while the sum is 33.

The square root of 13371945 is about 3656.7670147276. The cubic root of 13371945 is about 237.3548956672.

The spelling of 13371945 in words is "thirteen million, three hundred seventy-one thousand, nine hundred forty-five".

Divisors: 1 3 5 15 17 41 51 85 123 205 255 615 697 1279 2091 3485 3837 6395 10455 19185 21743 52439 65229 108715 157317 262195 326145 786585 891463 2674389 4457315 13371945