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79897164296320 = 275779225749221
BaseRepresentation
bin10010001010101010000010…
…000110001011000010000000
3101110220002112202100000020001
4102022222002012023002000
540433013343024440240
6441532130042325344
722554244133061220
oct2212520206130200
9343802482300201
1079897164296320
112350421936a988
128b647327b9854
133577368a04407
1415a3087098080
159384967b089a
hex48aa8218b080

79897164296320 has 128 divisors (see below), whose sum is σ = 221053638182400. Its totient is φ = 27046562549760.

The previous prime is 79897164296309. The next prime is 79897164296363. The reversal of 79897164296320 is 2369246179897.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112520691 + ... + 113228530.

It is an arithmetic number, because the mean of its divisors is an integer number (1726981548300).

Almost surely, 279897164296320 is an apocalyptic number.

79897164296320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79897164296320 is an abundant number, since it is smaller than the sum of its proper divisors (141156473886080).

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

79897164296320 is a wasteful number, since it uses less digits than its factorization.

79897164296320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225749326 (or 225749314 counting only the distinct ones).

The product of its (nonzero) digits is 493807104, while the sum is 73.

The spelling of 79897164296320 in words is "seventy-nine trillion, eight hundred ninety-seven billion, one hundred sixty-four million, two hundred ninety-six thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 79 80 112 128 140 158 160 224 280 316 320 395 448 553 560 632 640 790 896 1106 1120 1264 1580 2212 2240 2528 2765 3160 4424 4480 5056 5530 6320 8848 10112 11060 12640 17696 22120 25280 35392 44240 50560 70784 88480 176960 353920 225749221 451498442 902996884 1128746105 1580244547 1805993768 2257492210 3160489094 3611987536 4514984420 6320978188 7223975072 7901222735 9029968840 12641956376 14447950144 15802445470 17834188459 18059937680 25283912752 28895900288 31604890940 35668376918 36119875360 50567825504 63209781880 71336753836 72239750720 89170942295 101135651008 124839319213 126419563760 142673507672 144479501440 178341884590 202271302016 249678638426 252839127520 285347015344 356683769180 499357276852 505678255040 570694030688 624196596065 713367538360 998714553704 1011356510080 1141388061376 1248393192130 1426735076720 1997429107408 2282776122752 2496786384260 2853470153440 3994858214816 4993572768520 5706940306880 7989716429632 9987145537040 11413880613760 15979432859264 19974291074080 39948582148160 79897164296320