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79077900745 = 519877959527
BaseRepresentation
bin100100110100101101…
…0010000000111001001
321120010002000120121201
41021221122100013021
52243422420310440
6100154453504201
75466424031404
oct1115132200711
9246102016551
1079077900745
113059a460288
12133ab042061
1375c30a165c
143b82508d3b
1520cc57919a
hex12696901c9

79077900745 has 8 divisors (see below), whose sum is σ = 94941249984. Its totient is φ = 63230474544.

The previous prime is 79077900743. The next prime is 79077900761. The reversal of 79077900745 is 54700977097.

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 79077900745 - 21 = 79077900743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79077900743) 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, 3969829 + ... + 3989698.

It is an arithmetic number, because the mean of its divisors is an integer number (11867656248).

Almost surely, 279077900745 is an apocalyptic number.

It is an amenable number.

79077900745 is a deficient number, since it is larger than the sum of its proper divisors (15863349239).

79077900745 is a wasteful number, since it uses less digits than its factorization.

79077900745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7961519.

The product of its (nonzero) digits is 3889620, while the sum is 55.

The spelling of 79077900745 in words is "seventy-nine billion, seventy-seven million, nine hundred thousand, seven hundred forty-five".

Divisors: 1 5 1987 9935 7959527 39797635 15815580149 79077900745