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79064729 = 1391573623
BaseRepresentation
bin1001011011001…
…10111010011001
312111202220102022
410231212322121
5130220032404
611502344225
71650016262
oct455467231
9174686368
1079064729
11406a2557
122258b075
13134c3783
14a701969
156e1b8be
hex4b66e99

79064729 has 8 divisors (see below), whose sum is σ = 80162880. Its totient is φ = 77974416.

The previous prime is 79064707. The next prime is 79064747. The reversal of 79064729 is 92746097.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-79064729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79064729.

It is not an unprimeable number, because it can be changed into a prime (79064789) 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, 20012 + ... + 23634.

It is an arithmetic number, because the mean of its divisors is an integer number (10020360).

Almost surely, 279064729 is an apocalyptic number.

It is an amenable number.

79064729 is a deficient number, since it is larger than the sum of its proper divisors (1098151).

79064729 is a wasteful number, since it uses less digits than its factorization.

79064729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 79064729 is about 8891.8349624810. The cubic root of 79064729 is about 429.2012013474.

The spelling of 79064729 in words is "seventy-nine million, sixty-four thousand, seven hundred twenty-nine".

Divisors: 1 139 157 3623 21823 503597 568811 79064729