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131623840000 = 28549072
BaseRepresentation
bin111101010010101100…
…1000110100100000000
3110120202002110212100001
41322211121012210000
54124031200340000
6140244523405344
712336522115522
oct1724531064400
9416662425301
10131623840000
1150904254164
1221614683854
13c5484367c3
146529007a12
1536556c146a
hex1ea5646900

131623840000 has 135 divisors (see below), whose sum is σ = 328674186687. Its totient is φ = 52591488000.

The previous prime is 131623839989. The next prime is 131623840021. The reversal of 131623840000 is 48326131.

The square root of 131623840000 is 362800.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 10319309056 + 121304530944 = 101584^2 + 348288^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 145119547 + ... + 145120453.

Almost surely, 2131623840000 is an apocalyptic number.

131623840000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131623840000 is the 362800-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131623840000

131623840000 is an abundant number, since it is smaller than the sum of its proper divisors (197050346687).

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

131623840000 is an frugal number, since it uses more digits than its factorization.

131623840000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 131623840000 in words is "one hundred thirty-one billion, six hundred twenty-three million, eight hundred forty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 256 320 400 500 625 640 800 907 1000 1250 1280 1600 1814 2000 2500 3200 3628 4000 4535 5000 6400 7256 8000 9070 10000 14512 16000 18140 20000 22675 29024 32000 36280 40000 45350 58048 72560 80000 90700 113375 116096 145120 160000 181400 226750 232192 290240 362800 453500 566875 580480 725600 822649 907000 1133750 1160960 1451200 1645298 1814000 2267500 2902400 3290596 3628000 4113245 4535000 5804800 6581192 7256000 8226490 9070000 13162384 14512000 16452980 18140000 20566225 26324768 29024000 32905960 36280000 41132450 52649536 65811920 72560000 82264900 102831125 105299072 131623840 145120000 164529800 205662250 210598144 263247680 329059600 411324500 514155625 526495360 658119200 822649000 1028311250 1052990720 1316238400 1645298000 2056622500 2632476800 3290596000 4113245000 5264953600 6581192000 8226490000 13162384000 16452980000 26324768000 32905960000 65811920000 131623840000