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76680727 = 1729155539
BaseRepresentation
bin1001001001000…
…00111000010111
312100021210011221
410210200320113
5124112240402
611335311211
71620526654
oct444407027
9170253157
1076680727
113a314402
122181b507
1312b6a616
14a280c2b
156aea337
hex4920e17

76680727 has 8 divisors (see below), whose sum is σ = 83991600. Its totient is φ = 69681024.

The previous prime is 76680679. The next prime is 76680743. The reversal of 76680727 is 72708667.

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

It is a cyclic number.

It is not a de Polignac number, because 76680727 - 215 = 76647959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76680757) 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, 77277 + ... + 78262.

It is an arithmetic number, because the mean of its divisors is an integer number (10498950).

Almost surely, 276680727 is an apocalyptic number.

76680727 is a deficient number, since it is larger than the sum of its proper divisors (7310873).

76680727 is a wasteful number, since it uses less digits than its factorization.

76680727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155585.

The product of its (nonzero) digits is 197568, while the sum is 43.

The square root of 76680727 is about 8756.7532225135. The cubic root of 76680727 is about 424.8432676973.

The spelling of 76680727 in words is "seventy-six million, six hundred eighty thousand, seven hundred twenty-seven".

Divisors: 1 17 29 493 155539 2644163 4510631 76680727