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76860427 = 761180001
BaseRepresentation
bin1001001010011…
…00110000001011
312100121220200111
410211030300023
5124134013202
611343215151
71622205610
oct445146013
9170556614
1076860427
113a427416
12218a74b7
1312c01357
14a2ca507
156b336d7
hex494cc0b

76860427 has 8 divisors (see below), whose sum is σ = 89280992. Its totient is φ = 64800000.

The previous prime is 76860379. The next prime is 76860461. The reversal of 76860427 is 72406867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-76860427 is a prime.

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 76860427.

It is not an unprimeable number, because it can be changed into a prime (76861427) 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 7 ways as a sum of consecutive naturals, for example, 89574 + ... + 90427.

It is an arithmetic number, because the mean of its divisors is an integer number (11160124).

Almost surely, 276860427 is an apocalyptic number.

76860427 is a deficient number, since it is larger than the sum of its proper divisors (12420565).

76860427 is a wasteful number, since it uses less digits than its factorization.

76860427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180069.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 76860427 is about 8767.0078704196. The cubic root of 76860427 is about 425.1748798180.

The spelling of 76860427 in words is "seventy-six million, eight hundred sixty thousand, four hundred twenty-seven".

Divisors: 1 7 61 427 180001 1260007 10980061 76860427