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131554221045200 = 245219158811089967
BaseRepresentation
bin11101111010010111011010…
…100111010011010111010000
3122020210110102212002220120122
4131322113122213103113100
5114220341021041421300
61143443101432525412
736465323143465142
oct3572273247232720
9566713385086518
10131554221045200
1138a0a917194378
121290810a550868
1358536820a5295
14246b3889acc92
151032061b72c85
hex77a5da9d35d0

131554221045200 has 120 divisors (see below), whose sum is σ = 332714955534720. Its totient is φ = 49848941030400.

The previous prime is 131554221045119. The next prime is 131554221045209. The reversal of 131554221045200 is 2540122455131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131554221045209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120150617 + ... + 121240583.

It is an arithmetic number, because the mean of its divisors is an integer number (2772624629456).

Almost surely, 2131554221045200 is an apocalyptic number.

131554221045200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131554221045200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166357477767360).

131554221045200 is an abundant number, since it is smaller than the sum of its proper divisors (201160734489520).

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

131554221045200 is a wasteful number, since it uses less digits than its factorization.

131554221045200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105885 (or 1105874 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 131554221045200 in words is "one hundred thirty-one trillion, five hundred fifty-four billion, two hundred twenty-one million, forty-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 19 20 25 38 40 50 76 80 95 100 152 190 200 304 380 400 475 760 950 1520 1900 3800 7600 15881 31762 63524 79405 127048 158810 254096 301739 317620 397025 603478 635240 794050 1089967 1206956 1270480 1508695 1588100 2179934 2413912 3017390 3176200 4359868 4827824 5449835 6034780 6352400 7543475 8719736 10899670 12069560 15086950 17439472 20709373 21799340 24139120 27249175 30173900 41418746 43598680 54498350 60347800 82837492 87197360 103546865 108996700 120695600 165674984 207093730 217993400 331349968 414187460 435986800 517734325 828374920 1035468650 1656749840 2070937300 4141874600 8283749200 17309765927 34619531854 69239063708 86548829635 138478127416 173097659270 276956254832 328885552613 346195318540 432744148175 657771105226 692390637080 865488296350 1315542210452 1384781274160 1644427763065 1730976592700 2631084420904 3288855526130 3461953185400 5262168841808 6577711052260 6923906370800 8222138815325 13155422104520 16444277630650 26310844209040 32888555261300 65777110522600 131554221045200