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79952772670 = 2564712357461
BaseRepresentation
bin100101001110110001…
…1100111111000111110
321122101001020200021121
41022131203213320332
52302220402211140
6100421345221154
75530206232411
oct1123543477076
9248331220247
1079952772670
11309a928a531
12135b40317ba
13770240a754
143c267a3b78
15212e29064a
hex129d8e7e3e

79952772670 has 16 divisors (see below), whose sum is σ = 144137436768. Its totient is φ = 31931676640.

The previous prime is 79952772637. The next prime is 79952772671. The reversal of 79952772670 is 7627725997.

It is a junction number, because it is equal to n+sod(n) for n = 79952772599 and 79952772608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79952772671) 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, 6172261 + ... + 6185200.

It is an arithmetic number, because the mean of its divisors is an integer number (9008589798).

Almost surely, 279952772670 is an apocalyptic number.

79952772670 is a deficient number, since it is larger than the sum of its proper divisors (64184664098).

79952772670 is a wasteful number, since it uses less digits than its factorization.

79952772670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12358115.

The product of its (nonzero) digits is 23337720, while the sum is 61.

The spelling of 79952772670 in words is "seventy-nine billion, nine hundred fifty-two million, seven hundred seventy-two thousand, six hundred seventy".

Divisors: 1 2 5 10 647 1294 3235 6470 12357461 24714922 61787305 123574610 7995277267 15990554534 39976386335 79952772670