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13979211332280 = 23354323311627251
BaseRepresentation
bin1100101101101100100111…
…1011001111101010111000
31211111101210021101012210020
43023123021323033222320
53313013411100113110
645421543325450440
72641651613525625
oct313331173175270
954441707335706
1013979211332280
1144aa6063a5967
121699321710a20
137a530706352c
1436485152b34c
15193970ce7d70
hexcb6c9ecfab8

13979211332280 has 128 divisors (see below), whose sum is σ = 43097107173120. Its totient is φ = 3625469568000.

The previous prime is 13979211332159. The next prime is 13979211332347. The reversal of 13979211332280 is 8223311297931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4611346 + ... + 7015905.

It is an arithmetic number, because the mean of its divisors is an integer number (336696149790).

Almost surely, 213979211332280 is an apocalyptic number.

13979211332280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13979211332280 is an abundant number, since it is smaller than the sum of its proper divisors (29117895840840).

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

13979211332280 is a wasteful number, since it uses less digits than its factorization.

13979211332280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11627541 (or 11627537 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 13979211332280 in words is "thirteen trillion, nine hundred seventy-nine billion, two hundred eleven million, three hundred thirty-two thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 43 60 86 120 129 172 215 233 258 344 430 466 516 645 699 860 932 1032 1165 1290 1398 1720 1864 2330 2580 2796 3495 4660 5160 5592 6990 9320 10019 13980 20038 27960 30057 40076 50095 60114 80152 100190 120228 150285 200380 240456 300570 400760 601140 1202280 11627251 23254502 34881753 46509004 58136255 69763506 93018008 116272510 139527012 174408765 232545020 279054024 348817530 465090040 499971793 697635060 999943586 1395270120 1499915379 1999887172 2499858965 2709149483 2999830758 3999774344 4999717930 5418298966 5999661516 7499576895 8127448449 9999435860 10836597932 11999323032 13545747415 14999153790 16254896898 19998871720 21673195864 27091494830 29998307580 32509793796 40637242245 54182989660 59996615160 65019587592 81274484490 108365979320 116493427769 162548968980 232986855538 325097937960 349480283307 465973711076 582467138845 698960566614 931947422152 1164934277690 1397921133228 1747401416535 2329868555380 2795842266456 3494802833070 4659737110760 6989605666140 13979211332280