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12486136 = 2313211569
BaseRepresentation
bin101111101000…
…010111111000
3212111100202111
4233220113320
511144024021
61123342104
7211062505
oct57502770
925440674
1012486136
117059023
124221934
132782360
1419304ac
1511698e1
hexbe85f8

12486136 has 32 divisors (see below), whose sum is σ = 25376400. Its totient is φ = 5725440.

The previous prime is 12486127. The next prime is 12486137. The reversal of 12486136 is 63168421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12486098 and 12486107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12486137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21660 + ... + 22228.

Almost surely, 212486136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12486136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12688200).

12486136 is an abundant number, since it is smaller than the sum of its proper divisors (12890264).

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

12486136 is a wasteful number, since it uses less digits than its factorization.

12486136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799 (or 795 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 12486136 is about 3533.5726962948. The cubic root of 12486136 is about 231.9936086230.

The spelling of 12486136 in words is "twelve million, four hundred eighty-six thousand, one hundred thirty-six".

Divisors: 1 2 4 8 13 26 52 104 211 422 569 844 1138 1688 2276 2743 4552 5486 7397 10972 14794 21944 29588 59176 120059 240118 480236 960472 1560767 3121534 6243068 12486136