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76716620 = 2253835831
BaseRepresentation
bin1001001001010…
…01101001001100
312100100121102022
410210221221030
5124114412440
611340145312
71621036421
oct444515114
9170317368
1076716620
113a339372
1221838238
1312b80a66
14a28dd48
156b05cb5
hex4929a4c

76716620 has 12 divisors (see below), whose sum is σ = 161104944. Its totient is φ = 30686640.

The previous prime is 76716611. The next prime is 76716667. The reversal of 76716620 is 2661767.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1917896 + ... + 1917935.

It is an arithmetic number, because the mean of its divisors is an integer number (13425412).

Almost surely, 276716620 is an apocalyptic number.

It is an amenable number.

76716620 is an abundant number, since it is smaller than the sum of its proper divisors (84388324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76716620 is a wasteful number, since it uses less digits than its factorization.

76716620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3835840 (or 3835838 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 76716620 is about 8758.8024295562. The cubic root of 76716620 is about 424.9095447631.

The spelling of 76716620 in words is "seventy-six million, seven hundred sixteen thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 3835831 7671662 15343324 19179155 38358310 76716620