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131123310000 = 243544370777
BaseRepresentation
bin111101000011110001…
…1101110110110110000
3110112110012122022020220
41322013203232312300
54122020031410000
6140123123333040
712321233513424
oct1720743566660
9415405568226
10131123310000
1150677765601
12214b4b21180
13c4988273c7
1464bc754b84
1536267a11a0
hex1e878eedb0

131123310000 has 100 divisors (see below), whose sum is σ = 423283624632. Its totient is φ = 34966208000.

The previous prime is 131123309987. The next prime is 131123310103. The reversal of 131123310000 is 13321131.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-3 number, since 3×1311233100003 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2155389 + ... + 2215388.

Almost surely, 2131123310000 is an apocalyptic number.

131123310000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131123310000 is an abundant number, since it is smaller than the sum of its proper divisors (292160314632).

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

131123310000 is an equidigital number, since it uses as much as digits as its factorization.

131123310000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370808 (or 4370787 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 131123310000 its reverse (13321131), we get a palindrome (131136631131).

The spelling of 131123310000 in words is "one hundred thirty-one billion, one hundred twenty-three million, three hundred ten thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 125 150 200 240 250 300 375 400 500 600 625 750 1000 1200 1250 1500 1875 2000 2500 3000 3750 5000 6000 7500 10000 15000 30000 4370777 8741554 13112331 17483108 21853885 26224662 34966216 43707770 52449324 65561655 69932432 87415540 104898648 109269425 131123310 174831080 209797296 218538850 262246620 327808275 349662160 437077700 524493240 546347125 655616550 874155400 1048986480 1092694250 1311233100 1639041375 1748310800 2185388500 2622466200 2731735625 3278082750 4370777000 5244932400 5463471250 6556165500 8195206875 8741554000 10926942500 13112331000 16390413750 21853885000 26224662000 32780827500 43707770000 65561655000 131123310000