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76381372 = 2239894787
BaseRepresentation
bin1001000110101…
…11110010111100
312022201120112201
410203113302330
5124023200442
611325041244
71615142134
oct443276274
9168646481
1076381372
113a12a501
12216b6224
1312a942a2
14a203ac4
156a8b7b7
hex48d7cbc

76381372 has 12 divisors (see below), whose sum is σ = 133728840. Its totient is φ = 38173136.

The previous prime is 76381369. The next prime is 76381379. The reversal of 76381372 is 27318367.

It is a super-2 number, since 2×763813722 = 11668227977204768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76381379) 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, 13563 + ... + 18349.

It is an arithmetic number, because the mean of its divisors is an integer number (11144070).

Almost surely, 276381372 is an apocalyptic number.

It is an amenable number.

76381372 is a deficient number, since it is larger than the sum of its proper divisors (57347468).

76381372 is a wasteful number, since it uses less digits than its factorization.

76381372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8780 (or 8778 counting only the distinct ones).

The product of its digits is 42336, while the sum is 37.

The square root of 76381372 is about 8739.6436998312. The cubic root of 76381372 is about 424.2896961118.

The spelling of 76381372 in words is "seventy-six million, three hundred eighty-one thousand, three hundred seventy-two".

Divisors: 1 2 4 3989 4787 7978 9574 15956 19148 19095343 38190686 76381372