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76249481 = 711290023
BaseRepresentation
bin1001000101101…
…11100110001001
312022110212121212
410202313212021
5124004440411
611322142505
71614052460
oct442674611
9168425555
1076249481
113a04a400
1221651a35
1312a49249
14a1ab9d7
156a6268b
hex48b7989

76249481 has 12 divisors (see below), whose sum is σ = 95785536. Its totient is φ = 59414520.

The previous prime is 76249399. The next prime is 76249487. The reversal of 76249481 is 18494267.

It is not a de Polignac number, because 76249481 - 210 = 76248457 is a prime.

It is a super-2 number, since 2×762494812 = 11627966705538722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76249487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44165 + ... + 45858.

It is an arithmetic number, because the mean of its divisors is an integer number (7982128).

Almost surely, 276249481 is an apocalyptic number.

It is an amenable number.

76249481 is a deficient number, since it is larger than the sum of its proper divisors (19536055).

76249481 is a wasteful number, since it uses less digits than its factorization.

76249481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90052 (or 90041 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 76249481 is about 8732.0948803824. The cubic root of 76249481 is about 424.0453423237.

The spelling of 76249481 in words is "seventy-six million, two hundred forty-nine thousand, four hundred eighty-one".

Divisors: 1 7 11 77 121 847 90023 630161 990253 6931771 10892783 76249481