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76142970 = 2335282011
BaseRepresentation
bin1001000100111…
…01100101111010
312022021110112000
410202131211322
5123443033340
611320001430
71613130111
oct442354572
9168243460
1076142970
1139a87382
1221600276
1312a0c917
14a180c78
156a40d30
hex489d97a

76142970 has 32 divisors (see below), whose sum is σ = 203048640. Its totient is φ = 20304720.

The previous prime is 76142923. The next prime is 76142987. The reversal of 76142970 is 7924167.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140736 + ... + 141275.

It is an arithmetic number, because the mean of its divisors is an integer number (6345270).

Almost surely, 276142970 is an apocalyptic number.

76142970 is an abundant number, since it is smaller than the sum of its proper divisors (126905670).

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

76142970 is a wasteful number, since it uses less digits than its factorization.

76142970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282027 (or 282021 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 76142970 is about 8725.9939261955. The cubic root of 76142970 is about 423.8478041924.

The spelling of 76142970 in words is "seventy-six million, one hundred forty-two thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 282011 564022 846033 1410055 1692066 2538099 2820110 4230165 5076198 7614297 8460330 12690495 15228594 25380990 38071485 76142970