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13742838 = 2331571621
BaseRepresentation
bin110100011011…
…001011110110
3221212012122000
4310123023312
512004232323
61210320130
7224545404
oct64331366
927765560
1013742838
11783721a
124729046
132b02375
141b7a474
151316e43
hexd1b2f6

13742838 has 32 divisors (see below), whose sum is σ = 30753120. Its totient is φ = 4548960.

The previous prime is 13742837. The next prime is 13742849. The reversal of 13742838 is 83824731.

13742838 is a `hidden beast` number, since 1 + 374 + 283 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13742837) 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, 7668 + ... + 9288.

It is an arithmetic number, because the mean of its divisors is an integer number (961035).

Almost surely, 213742838 is an apocalyptic number.

13742838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13742838 is an abundant number, since it is smaller than the sum of its proper divisors (17010282).

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

13742838 is a wasteful number, since it uses less digits than its factorization.

13742838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789 (or 1783 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 13742838 is about 3707.1333938773. The cubic root of 13742838 is about 239.5293902969.

The spelling of 13742838 in words is "thirteen million, seven hundred forty-two thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 54 157 314 471 942 1413 1621 2826 3242 4239 4863 8478 9726 14589 29178 43767 87534 254497 508994 763491 1526982 2290473 4580946 6871419 13742838