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79990262713 = 195881715867
BaseRepresentation
bin100101001111111001…
…0101000101110111001
321122110122210100221201
41022133302220232321
52302310001401323
6100425204534201
75531143005004
oct1123762505671
9248418710851
1079990262713
1130a18466339
12136046b1361
13770a1059ca
143c2b76253b
1521326e88ad
hex129fca8bb9

79990262713 has 8 divisors (see below), whose sum is σ = 84214711520. Its totient is φ = 75767257440.

The previous prime is 79990262711. The next prime is 79990262731. The reversal of 79990262713 is 31726209997.

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

It is a cyclic number.

It is not a de Polignac number, because 79990262713 - 21 = 79990262711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79990262711) 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, 246195 + ... + 469672.

It is an arithmetic number, because the mean of its divisors is an integer number (10526838940).

Almost surely, 279990262713 is an apocalyptic number.

It is an amenable number.

79990262713 is a deficient number, since it is larger than the sum of its proper divisors (4224448807).

79990262713 is a wasteful number, since it uses less digits than its factorization.

79990262713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721767.

The product of its (nonzero) digits is 2571912, while the sum is 55.

The spelling of 79990262713 in words is "seventy-nine billion, nine hundred ninety million, two hundred sixty-two thousand, seven hundred thirteen".

Divisors: 1 19 5881 111739 715867 13601473 4210013827 79990262713