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76480839 = 328497871
BaseRepresentation
bin1001000111100…
…00000101000111
312022220121222200
410203300011013
5124034341324
611331125543
71616035131
oct443600507
9168817880
1076480839
113a198206
12217438b3
1312aca646
14a22c051
156aaaec9
hex48f0147

76480839 has 6 divisors (see below), whose sum is σ = 110472336. Its totient is φ = 50987220.

The previous prime is 76480837. The next prime is 76480843. The reversal of 76480839 is 93808467.

It is a happy number.

It is not a de Polignac number, because 76480839 - 21 = 76480837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76480794 and 76480803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76480837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4248927 + ... + 4248944.

It is an arithmetic number, because the mean of its divisors is an integer number (18412056).

Almost surely, 276480839 is an apocalyptic number.

76480839 is a deficient number, since it is larger than the sum of its proper divisors (33991497).

76480839 is a wasteful number, since it uses less digits than its factorization.

76480839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8497877 (or 8497874 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 76480839 is about 8745.3324122071. The cubic root of 76480839 is about 424.4737921198.

It can be divided in two parts, 7 and 6480839, that added together give a palindrome (6480846).

The spelling of 76480839 in words is "seventy-six million, four hundred eighty thousand, eight hundred thirty-nine".

Divisors: 1 3 9 8497871 25493613 76480839