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79257426468 = 2231119126311953
BaseRepresentation
bin100100111010000011…
…1000101101000100100
321120120120211102121120
41021310013011220210
52244304400121333
6100224345413540
75504034003123
oct1116407055044
9246516742546
1079257426468
1130681829650
121343b19a2b0
13762133a6ac
143b9c2bbaba
1520dd1dbdb3
hex12741c5a24

79257426468 has 96 divisors (see below), whose sum is σ = 203590582272. Its totient is φ = 23798822400.

The previous prime is 79257426467. The next prime is 79257426497. The reversal of 79257426468 is 86462475297.

It is not an unprimeable number, because it can be changed into a prime (79257426461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6624780 + ... + 6636732.

It is an arithmetic number, because the mean of its divisors is an integer number (2120735232).

Almost surely, 279257426468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79257426468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101795291136).

79257426468 is an abundant number, since it is smaller than the sum of its proper divisors (124333155804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79257426468 is a wasteful number, since it uses less digits than its factorization.

79257426468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12425 (or 12423 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 60.

The spelling of 79257426468 in words is "seventy-nine billion, two hundred fifty-seven million, four hundred twenty-six thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 191 263 382 526 573 764 789 1052 1146 1578 2101 2292 2893 3156 4202 5786 6303 8404 8679 11572 11953 12606 17358 23906 25212 34716 35859 47812 50233 71718 100466 131483 143436 150699 200932 262966 301398 394449 525932 552563 602796 788898 1105126 1577796 1657689 2210252 2283023 3143639 3315378 4566046 6287278 6630756 6849069 9132092 9430917 12574556 13698138 18861834 25113253 27396276 34580029 37723668 50226506 69160058 75339759 100453012 103740087 138320116 150679518 207480174 301359036 414960348 600435049 1200870098 1801305147 2401740196 3602610294 6604785539 7205220588 13209571078 19814356617 26419142156 39628713234 79257426468