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76243481 = 103173951
BaseRepresentation
bin1001000101101…
…10001000011001
312022110120101122
410202312020121
5124004242411
611322055025
71614026126
oct442661031
9168416348
1076243481
113a045946
122164a475
1312a465b2
14a1a974d
156a609db
hex48b6219

76243481 has 4 divisors (see below), whose sum is σ = 76318464. Its totient is φ = 76168500.

The previous prime is 76243471. The next prime is 76243493. The reversal of 76243481 is 18434267.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76243481 - 26 = 76243417 is a prime.

It is a super-2 number, since 2×762434812 = 11626136789994722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76243451) 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 3 ways as a sum of consecutive naturals, for example, 35945 + ... + 38006.

It is an arithmetic number, because the mean of its divisors is an integer number (19079616).

Almost surely, 276243481 is an apocalyptic number.

It is an amenable number.

76243481 is a deficient number, since it is larger than the sum of its proper divisors (74983).

76243481 is a wasteful number, since it uses less digits than its factorization.

76243481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74982.

The product of its digits is 32256, while the sum is 35.

The square root of 76243481 is about 8731.7513134537. The cubic root of 76243481 is about 424.0342194555.

The spelling of 76243481 in words is "seventy-six million, two hundred forty-three thousand, four hundred eighty-one".

Divisors: 1 1031 73951 76243481