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76485869 = 411865509
BaseRepresentation
bin1001000111100…
…01010011101101
312022220212212222
410203301103231
5124040021434
611331205125
71616055605
oct443612355
9168825788
1076485869
113a1a0a69
12217467a5
1312acca15
14a22dc05
156aac72e
hex48f14ed

76485869 has 4 divisors (see below), whose sum is σ = 78351420. Its totient is φ = 74620320.

The previous prime is 76485859. The next prime is 76485883. The reversal of 76485869 is 96858467.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2439844 + 74046025 = 1562^2 + 8605^2 .

It is a cyclic number.

It is not a de Polignac number, because 76485869 - 24 = 76485853 is a prime.

It is a super-2 number, since 2×764858692 = 11700176313370322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76485869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76485809) 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, 932714 + ... + 932795.

It is an arithmetic number, because the mean of its divisors is an integer number (19587855).

Almost surely, 276485869 is an apocalyptic number.

It is an amenable number.

76485869 is a deficient number, since it is larger than the sum of its proper divisors (1865551).

76485869 is a wasteful number, since it uses less digits than its factorization.

76485869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865550.

The product of its digits is 2903040, while the sum is 53.

The square root of 76485869 is about 8745.6199894576. The cubic root of 76485869 is about 424.4830975284.

The spelling of 76485869 in words is "seventy-six million, four hundred eighty-five thousand, eight hundred sixty-nine".

Divisors: 1 41 1865509 76485869