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76775085 = 3251706113
BaseRepresentation
bin1001001001101…
…11111010101101
312100110120121200
410210313322231
5124123300320
611341320113
71621402032
oct444677255
9170416550
1076775085
113a379292
1221866039
1312ba155a
14a2a7389
156b18290
hex4937ead

76775085 has 12 divisors (see below), whose sum is σ = 133076892. Its totient is φ = 40946688.

The previous prime is 76775071. The next prime is 76775087. The reversal of 76775085 is 58057767.

76775085 is a `hidden beast` number, since 76 + 77 + 508 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 33767721 + 43007364 = 5811^2 + 6558^2 .

It is not a de Polignac number, because 76775085 - 25 = 76775053 is a prime.

It is a super-3 number, since 3×767750853 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1706113 = 76775085 / (7 + 6 + 7 + 7 + 5 + 0 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 76775085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76775087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 853012 + ... + 853101.

It is an arithmetic number, because the mean of its divisors is an integer number (11089741).

Almost surely, 276775085 is an apocalyptic number.

It is an amenable number.

76775085 is a deficient number, since it is larger than the sum of its proper divisors (56301807).

76775085 is a wasteful number, since it uses less digits than its factorization.

76775085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706124 (or 1706121 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The square root of 76775085 is about 8762.1392935744. The cubic root of 76775085 is about 425.0174571837.

The spelling of 76775085 in words is "seventy-six million, seven hundred seventy-five thousand, eighty-five".

Divisors: 1 3 5 9 15 45 1706113 5118339 8530565 15355017 25591695 76775085