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12338238 = 2311712633
BaseRepresentation
bin101111000100…
…010000111110
3212012211212210
4233010100332
511124310423
61120241250
7206605353
oct57042076
925184783
1012338238
116a679a0
124170226
13272cc43
1418d262a
15113ab93
hexbc443e

12338238 has 32 divisors (see below), whose sum is σ = 27309312. Its totient is φ = 3684800.

The previous prime is 12338233. The next prime is 12338273. The reversal of 12338238 is 83283321.

12338238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12338233) 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, 3370 + ... + 6002.

It is an arithmetic number, because the mean of its divisors is an integer number (853416).

Almost surely, 212338238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12338238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13654656).

12338238 is an abundant number, since it is smaller than the sum of its proper divisors (14971074).

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

12338238 is a wasteful number, since it uses less digits than its factorization.

12338238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720.

The product of its digits is 6912, while the sum is 30.

The square root of 12338238 is about 3512.5828104117. The cubic root of 12338238 is about 231.0739816633.

The spelling of 12338238 in words is "twelve million, three hundred thirty-eight thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 66 71 142 213 426 781 1562 2343 2633 4686 5266 7899 15798 28963 57926 86889 173778 186943 373886 560829 1121658 2056373 4112746 6169119 12338238