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76457380 = 2253822869
BaseRepresentation
bin1001000111010…
…10010110100100
312022212102210211
410203222112210
5124033114010
611330425204
71615606546
oct443522644
9168772724
1076457380
113a18161a
1221732204
1312abca6c
14a223696
156aa408a
hex48ea5a4

76457380 has 12 divisors (see below), whose sum is σ = 160560540. Its totient is φ = 30582944.

The previous prime is 76457363. The next prime is 76457383. The reversal of 76457380 is 8375467.

It can be written as a sum of positive squares in 2 ways, for example, as 50324836 + 26132544 = 7094^2 + 5112^2 .

It is not an unprimeable number, because it can be changed into a prime (76457383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1911415 + ... + 1911454.

It is an arithmetic number, because the mean of its divisors is an integer number (13380045).

Almost surely, 276457380 is an apocalyptic number.

It is an amenable number.

76457380 is an abundant number, since it is smaller than the sum of its proper divisors (84103160).

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

76457380 is a wasteful number, since it uses less digits than its factorization.

76457380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822878 (or 3822876 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 76457380 is about 8743.9910795929. The cubic root of 76457380 is about 424.4303880066.

The spelling of 76457380 in words is "seventy-six million, four hundred fifty-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 3822869 7645738 15291476 19114345 38228690 76457380