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76220671 = 29290631
BaseRepresentation
bin1001000101100…
…00100011111111
312022102102002211
410202300203333
5124003030141
611321401251
71613602462
oct442604377
9168372084
1076220671
113a02a79a
1221639227
1312a390b7
14a1a12d9
156a58d81
hex48b08ff

76220671 has 6 divisors (see below), whose sum is σ = 78940472. Its totient is φ = 73591560.

The previous prime is 76220653. The next prime is 76220717. The reversal of 76220671 is 17602267.

It is a de Polignac number, because none of the positive numbers 2k-76220671 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 (76290671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44475 + ... + 46156.

Almost surely, 276220671 is an apocalyptic number.

76220671 is a deficient number, since it is larger than the sum of its proper divisors (2719801).

76220671 is an equidigital number, since it uses as much as digits as its factorization.

76220671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90689 (or 90660 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 76220671 is about 8730.4450631110. The cubic root of 76220671 is about 423.9919286911.

The spelling of 76220671 in words is "seventy-six million, two hundred twenty thousand, six hundred seventy-one".

Divisors: 1 29 841 90631 2628299 76220671