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12538108 = 2211284957
BaseRepresentation
bin101111110101…
…000011111100
3212121000001101
4233311003330
511202204413
61124422444
7211400152
oct57650374
925530041
1012538108
117094080
124247a24
13279cbcb
1419453d2
151179edd
hexbf50fc

12538108 has 12 divisors (see below), whose sum is σ = 23936472. Its totient is φ = 5699120.

The previous prime is 12538073. The next prime is 12538109. The reversal of 12538108 is 80183521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12538109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142435 + ... + 142522.

It is an arithmetic number, because the mean of its divisors is an integer number (1994706).

Almost surely, 212538108 is an apocalyptic number.

It is an amenable number.

12538108 is a deficient number, since it is larger than the sum of its proper divisors (11398364).

12538108 is a wasteful number, since it uses less digits than its factorization.

12538108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284972 (or 284970 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 12538108 is about 3540.9190897280. The cubic root of 12538108 is about 232.3150446428.

The spelling of 12538108 in words is "twelve million, five hundred thirty-eight thousand, one hundred eight".

Divisors: 1 2 4 11 22 44 284957 569914 1139828 3134527 6269054 12538108