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76868716 = 2231619909
BaseRepresentation
bin1001001010011…
…10110001101100
312100122100001111
410211032301230
5124134244331
611343321404
71622242021
oct445166154
9170570044
1076868716
113a432671
12218b0264
1312c05062
14a2cd548
156b35db1
hex494ec6c

76868716 has 12 divisors (see below), whose sum is σ = 138859840. Its totient is φ = 37194480.

The previous prime is 76868663. The next prime is 76868749. The reversal of 76868716 is 61786867.

It is a self number, because there is not a number n which added to its sum of digits gives 76868716.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 309831 + ... + 310078.

Almost surely, 276868716 is an apocalyptic number.

It is an amenable number.

76868716 is a deficient number, since it is larger than the sum of its proper divisors (61991124).

76868716 is a wasteful number, since it uses less digits than its factorization.

76868716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619944 (or 619942 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

The square root of 76868716 is about 8767.4805959295. The cubic root of 76868716 is about 425.1901635734.

The spelling of 76868716 in words is "seventy-six million, eight hundred sixty-eight thousand, seven hundred sixteen".

Divisors: 1 2 4 31 62 124 619909 1239818 2479636 19217179 38434358 76868716