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13388470 = 2571109173
BaseRepresentation
bin110011000100…
…101010110110
3221012012112021
4303010222312
511411412340
61154543354
7221541304
oct63045266
927165467
1013388470
117614a57
124597b5a
132a09c94
141ac7274
151296e4a
hexcc4ab6

13388470 has 32 divisors (see below), whose sum is σ = 24805440. Its totient is φ = 5201280.

The previous prime is 13388449. The next prime is 13388471. The reversal of 13388470 is 7488331.

13388470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×133884702 = 358502257881800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13388471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77304 + ... + 77476.

It is an arithmetic number, because the mean of its divisors is an integer number (775170).

Almost surely, 213388470 is an apocalyptic number.

13388470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13388470 is a deficient number, since it is larger than the sum of its proper divisors (11416970).

13388470 is a wasteful number, since it uses less digits than its factorization.

13388470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 13388470 is about 3659.0258266375. The cubic root of 13388470 is about 237.4526295182.

The spelling of 13388470 in words is "thirteen million, three hundred eighty-eight thousand, four hundred seventy".

Divisors: 1 2 5 10 71 109 142 173 218 346 355 545 710 865 1090 1730 7739 12283 15478 18857 24566 37714 38695 61415 77390 94285 122830 188570 1338847 2677694 6694235 13388470