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118272687238420 = 2251113166924777763
BaseRepresentation
bin11010111001000110000001…
…100000100110110100010100
3120111202202110221002011110021
4122321012001200212310110
5111000234430413112140
61055313420013434524
733624630306025111
oct3271060140466424
9514682427064407
10118272687238420
113475a18a6466a0
121132205779ba44
1350cc0b3298020
14212c600147908
15da18260c1b4a
hex6b9181826d14

118272687238420 has 96 divisors (see below), whose sum is σ = 291969277649280. Its totient is φ = 39676134735360.

The previous prime is 118272687238337. The next prime is 118272687238421. The reversal of 118272687238420 is 24832786272811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118272687238421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7615542 + ... + 17162221.

It is an arithmetic number, because the mean of its divisors is an integer number (3041346642180).

Almost surely, 2118272687238420 is an apocalyptic number.

118272687238420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118272687238420 is an abundant number, since it is smaller than the sum of its proper divisors (173696590410860).

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

118272687238420 is a wasteful number, since it uses less digits than its factorization.

118272687238420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24779465 (or 24779463 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 61.

The spelling of 118272687238420 in words is "one hundred eighteen trillion, two hundred seventy-two billion, six hundred eighty-seven million, two hundred thirty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 572 715 1430 1669 2860 3338 6676 8345 16690 18359 21697 33380 36718 43394 73436 86788 91795 108485 183590 216970 238667 367180 433940 477334 954668 1193335 2386670 4773340 24777763 49555526 99111052 123888815 247777630 272555393 322110919 495555260 545110786 644221838 1090221572 1288443676 1362776965 1610554595 2725553930 3221109190 3543220109 5451107860 6442218380 7086440218 14172880436 17716100545 35432201090 41354086447 70864402180 82708172894 165416345788 206770432235 413540864470 454894950917 537603123811 827081728940 909789901834 1075206247622 1819579803668 2150412495244 2274474754585 2688015619055 4548949509170 5376031238110 5913634361921 9097899018340 10752062476220 11827268723842 23654537447684 29568171809605 59136343619210 118272687238420