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76864386 = 2319674249
BaseRepresentation
bin1001001010011…
…01101110000010
312100122010010010
410211031232002
5124134130021
611343245350
71622223264
oct445155602
9170563103
1076864386
113a42a395
12218a9856
1312c030b1
14a2cbb34
156b34976
hex494db82

76864386 has 16 divisors (see below), whose sum is σ = 161820000. Its totient is φ = 24272928.

The previous prime is 76864379. The next prime is 76864397. The reversal of 76864386 is 68346867.

It is a happy number.

It is a super-3 number, since 3×768643863 (a number of 25 digits) contains 333 as substring.

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, 337011 + ... + 337238.

It is an arithmetic number, because the mean of its divisors is an integer number (10113750).

Almost surely, 276864386 is an apocalyptic number.

76864386 is an abundant number, since it is smaller than the sum of its proper divisors (84955614).

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

76864386 is a wasteful number, since it uses less digits than its factorization.

76864386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674273.

The product of its digits is 1161216, while the sum is 48.

The square root of 76864386 is about 8767.2336572034. The cubic root of 76864386 is about 425.1821797968.

The spelling of 76864386 in words is "seventy-six million, eight hundred sixty-four thousand, three hundred eighty-six".

Divisors: 1 2 3 6 19 38 57 114 674249 1348498 2022747 4045494 12810731 25621462 38432193 76864386