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77140713 = 31317116351
BaseRepresentation
bin1001001100100…
…01001011101001
312101011011011110
410212101023221
5124222000323
611353220533
71624454016
oct446211351
9171134143
1077140713
113a5a8a61
1221a01749
1312c9bac0
14a36070d
156b8b793
hex49912e9

77140713 has 16 divisors (see below), whose sum is σ = 117282816. Its totient is φ = 44678400.

The previous prime is 77140699. The next prime is 77140733. The reversal of 77140713 is 31704177.

It is not a de Polignac number, because 77140713 - 28 = 77140457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77140733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57513 + ... + 58838.

It is an arithmetic number, because the mean of its divisors is an integer number (7330176).

Almost surely, 277140713 is an apocalyptic number.

It is an amenable number.

77140713 is a deficient number, since it is larger than the sum of its proper divisors (40142103).

77140713 is a wasteful number, since it uses less digits than its factorization.

77140713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116384.

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 77140713 is about 8782.9785949870. The cubic root of 77140713 is about 425.6910795690.

The spelling of 77140713 in words is "seventy-seven million, one hundred forty thousand, seven hundred thirteen".

Divisors: 1 3 13 17 39 51 221 663 116351 349053 1512563 1977967 4537689 5933901 25713571 77140713