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76396970 = 2513587669
BaseRepresentation
bin1001000110110…
…11100110101010
312022202100221102
410203123212222
5124024200340
611325241402
71615235456
oct443334652
9168670842
1076396970
113a1401a1
1221703262
1312a9b410
14a209666
156a91215
hex48db9aa

76396970 has 16 divisors (see below), whose sum is σ = 148092840. Its totient is φ = 28208064.

The previous prime is 76396937. The next prime is 76396979. The reversal of 76396970 is 7969367.

It can be written as a sum of positive squares in 4 ways, for example, as 32982049 + 43414921 = 5743^2 + 6589^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76396979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293705 + ... + 293964.

Almost surely, 276396970 is an apocalyptic number.

76396970 is a deficient number, since it is larger than the sum of its proper divisors (71695870).

76396970 is a wasteful number, since it uses less digits than its factorization.

76396970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587689.

The product of its (nonzero) digits is 428652, while the sum is 47.

The square root of 76396970 is about 8740.5360247527. The cubic root of 76396970 is about 424.3185758419.

The spelling of 76396970 in words is "seventy-six million, three hundred ninety-six thousand, nine hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 587669 1175338 2938345 5876690 7639697 15279394 38198485 76396970