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76112831 = 193394367
BaseRepresentation
bin1001000100101…
…10001110111111
312022012221011202
410202112032333
5123441102311
611315210115
71612643204
oct442261677
9168187152
1076112831
1139a66773
12215a693b
13129cbca2
14a173cab
156a36e3b
hex48963bf

76112831 has 4 divisors (see below), whose sum is σ = 76507392. Its totient is φ = 75718272.

The previous prime is 76112807. The next prime is 76112857. The reversal of 76112831 is 13821167.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 76112831 - 26 = 76112767 is a prime.

It is a super-2 number, since 2×761128312 = 11586326085669122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76112794 and 76112803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76112431) 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, 196991 + ... + 197376.

It is an arithmetic number, because the mean of its divisors is an integer number (19126848).

Almost surely, 276112831 is an apocalyptic number.

76112831 is a deficient number, since it is larger than the sum of its proper divisors (394561).

76112831 is a wasteful number, since it uses less digits than its factorization.

76112831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394560.

The product of its digits is 2016, while the sum is 29.

The square root of 76112831 is about 8724.2667886763. The cubic root of 76112831 is about 423.7918741667.

Adding to 76112831 its reverse (13821167), we get a palindrome (89933998).

The spelling of 76112831 in words is "seventy-six million, one hundred twelve thousand, eight hundred thirty-one".

Divisors: 1 193 394367 76112831