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12742896 = 243535009
BaseRepresentation
bin110000100111…
…000011110000
3212222101222010
4300213003300
511230233041
61133042520
7213212205
oct60470360
925871863
1012742896
117213a21
124326440
13284219a
141999cac
1511baa16
hexc270f0

12742896 has 40 divisors (see below), whose sum is σ = 33546960. Its totient is φ = 4166656.

The previous prime is 12742883. The next prime is 12742903. The reversal of 12742896 is 69824721.

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, 40 + ... + 5048.

It is an arithmetic number, because the mean of its divisors is an integer number (838674).

Almost surely, 212742896 is an apocalyptic number.

12742896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12742896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16773480).

12742896 is an abundant number, since it is smaller than the sum of its proper divisors (20804064).

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

12742896 is a wasteful number, since it uses less digits than its factorization.

12742896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073 (or 5067 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 12742896 is about 3569.7193166970. The cubic root of 12742896 is about 233.5730398297.

The spelling of 12742896 in words is "twelve million, seven hundred forty-two thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 53 106 159 212 318 424 636 848 1272 2544 5009 10018 15027 20036 30054 40072 60108 80144 120216 240432 265477 530954 796431 1061908 1592862 2123816 3185724 4247632 6371448 12742896