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76916690 = 257691669
BaseRepresentation
bin1001001010110…
…10011111010010
312100201202212022
410211122133102
5124142313230
611344331442
71622531624
oct445323722
9170652768
1076916690
113a465714
1221913b82
1312c20b46
14a302c14
156b451e5
hex495a7d2

76916690 has 8 divisors (see below), whose sum is σ = 138450060. Its totient is φ = 30766672.

The previous prime is 76916689. The next prime is 76916711. The reversal of 76916690 is 9661967.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71351809 + 5564881 = 8447^2 + 2359^2 .

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

It is a super-2 number, since 2×769166902 = 11832354401112200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3845825 + ... + 3845844.

Almost surely, 276916690 is an apocalyptic number.

76916690 is a deficient number, since it is larger than the sum of its proper divisors (61533370).

76916690 is a wasteful number, since it uses less digits than its factorization.

76916690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7691676.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 76916690 is about 8770.2160748752. The cubic root of 76916690 is about 425.2785993374.

The spelling of 76916690 in words is "seventy-six million, nine hundred sixteen thousand, six hundred ninety".

Divisors: 1 2 5 10 7691669 15383338 38458345 76916690