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12457086 = 233756113
BaseRepresentation
bin101111100001…
…010001111110
3212102212220120
4233201101332
511142111321
61122555410
7210612015
oct57412176
925385816
1012457086
117039214
124208b66
132772075
141923a7c
151160ec6
hexbe147e

12457086 has 16 divisors (see below), whose sum is σ = 25587984. Its totient is φ = 4040064.

The previous prime is 12457061. The next prime is 12457091. The reversal of 12457086 is 68075421.

It is a super-2 number, since 2×124570862 = 310357983222792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27835 + ... + 28278.

It is an arithmetic number, because the mean of its divisors is an integer number (1599249).

Almost surely, 212457086 is an apocalyptic number.

12457086 is an abundant number, since it is smaller than the sum of its proper divisors (13130898).

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

12457086 is a wasteful number, since it uses less digits than its factorization.

12457086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56155.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 12457086 is about 3529.4597320270. The cubic root of 12457086 is about 231.8135516464.

The spelling of 12457086 in words is "twelve million, four hundred fifty-seven thousand, eighty-six".

Divisors: 1 2 3 6 37 74 111 222 56113 112226 168339 336678 2076181 4152362 6228543 12457086