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70764713 = 431645691
BaseRepresentation
bin1000011011111…
…00100010101001
311221011012221022
410031330202221
5121103432323
611004422225
71516330055
oct415744251
9157135838
1070764713
1136a43638
121b847975
1311878916
149580c65
15632c4c8
hex437c8a9

70764713 has 4 divisors (see below), whose sum is σ = 72410448. Its totient is φ = 69118980.

The previous prime is 70764703. The next prime is 70764731. The reversal of 70764713 is 31746707.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31746707 = 60752301.

It is a cyclic number.

It is not a de Polignac number, because 70764713 - 216 = 70699177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70764703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822803 + ... + 822888.

It is an arithmetic number, because the mean of its divisors is an integer number (18102612).

Almost surely, 270764713 is an apocalyptic number.

It is an amenable number.

70764713 is a deficient number, since it is larger than the sum of its proper divisors (1645735).

70764713 is a wasteful number, since it uses less digits than its factorization.

70764713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645734.

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 70764713 is about 8412.1764722336. The cubic root of 70764713 is about 413.6238600151.

The spelling of 70764713 in words is "seventy million, seven hundred sixty-four thousand, seven hundred thirteen".

Divisors: 1 43 1645691 70764713