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7412868 = 2232205913
BaseRepresentation
bin11100010001110010000100
3111221121112200
4130101302010
53344202433
6422514500
7120002601
oct34216204
914847480
107412868
114203441
122595a30
1316c7118
14dad6a8
159b6613
hex711c84

7412868 has 18 divisors (see below), whose sum is σ = 18738174. Its totient is φ = 2470944.

The previous prime is 7412857. The next prime is 7412879. The reversal of 7412868 is 8682147.

It is an interprime number because it is at equal distance from previous prime (7412857) and next prime (7412879).

It can be written as a sum of positive squares in only one way, i.e., 6140484 + 1272384 = 2478^2 + 1128^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×74128682 = 109901223970848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 205913 = 7412868 / (7 + 4 + 1 + 2 + 8 + 6 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102921 + ... + 102992.

Almost surely, 27412868 is an apocalyptic number.

It is an amenable number.

7412868 is an abundant number, since it is smaller than the sum of its proper divisors (11325306).

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

7412868 is a wasteful number, since it uses less digits than its factorization.

7412868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205923 (or 205918 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 7412868 is about 2722.6582598630. The cubic root of 7412868 is about 194.9824047240.

The spelling of 7412868 in words is "seven million, four hundred twelve thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 205913 411826 617739 823652 1235478 1853217 2470956 3706434 7412868