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76385868 = 22313489653
BaseRepresentation
bin1001000110110…
…00111001001100
312022201210201020
410203120321030
5124023321433
611325114140
71615161216
oct443307114
9168653636
1076385868
113a132919
12216b8950
1312a96350
14a2055b6
156a8ccb3
hex48d8e4c

76385868 has 24 divisors (see below), whose sum is σ = 191944368. Its totient is φ = 23503296.

The previous prime is 76385861. The next prime is 76385873. The reversal of 76385868 is 86858367.

It is a super-2 number, since 2×763858682 = 11669601660226848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76385868.

It is not an unprimeable number, because it can be changed into a prime (76385861) 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, 244671 + ... + 244982.

It is an arithmetic number, because the mean of its divisors is an integer number (7997682).

Almost surely, 276385868 is an apocalyptic number.

76385868 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

76385868 is an abundant number, since it is smaller than the sum of its proper divisors (115558500).

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

76385868 is a wasteful number, since it uses less digits than its factorization.

76385868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489673 (or 489671 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 76385868 is about 8739.9009147701. The cubic root of 76385868 is about 424.2980208686.

The spelling of 76385868 in words is "seventy-six million, three hundred eighty-five thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 489653 979306 1468959 1958612 2937918 5875836 6365489 12730978 19096467 25461956 38192934 76385868