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131213133000 = 23325314579237
BaseRepresentation
bin111101000110011101…
…0011000010011001000
3110112200110122210020200
41322030322120103020
54122211030224000
6140140052452200
712323404141155
oct1721472302310
9415613583220
10131213133000
1150713435994
122151b01a060
13c4b1316901
1464ca65722c
15362e5e5500
hex1e8ce984c8

131213133000 has 96 divisors (see below), whose sum is σ = 443500419960. Its totient is φ = 34990166400.

The previous prime is 131213132993. The next prime is 131213133059. The reversal of 131213133000 is 331312131.

It is a happy number.

131213133000 is a `hidden beast` number, since 1 + 31 + 21 + 313 + 300 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 79940776644 + 51272356356 = 282738^2 + 226434^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7280619 + ... + 7298618.

Almost surely, 2131213133000 is an apocalyptic number.

131213133000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131213133000 is an abundant number, since it is smaller than the sum of its proper divisors (312287286960).

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

131213133000 is a wasteful number, since it uses less digits than its factorization.

131213133000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14579264 (or 14579247 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 131213133000 its reverse (331312131), we get a palindrome (131544445131).

The spelling of 131213133000 in words is "one hundred thirty-one billion, two hundred thirteen million, one hundred thirty-three thousand".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 30 36 40 45 50 60 72 75 90 100 120 125 150 180 200 225 250 300 360 375 450 500 600 750 900 1000 1125 1500 1800 2250 3000 4500 9000 14579237 29158474 43737711 58316948 72896185 87475422 116633896 131213133 145792370 174950844 218688555 262426266 291584740 349901688 364480925 437377110 524852532 583169480 656065665 728961850 874754220 1049705064 1093442775 1312131330 1457923700 1749508440 1822404625 2186885550 2624262660 2915847400 3280328325 3644809250 4373771100 5248525320 5467213875 6560656650 7289618500 8747542200 10934427750 13121313300 14579237000 16401641625 21868855500 26242626600 32803283250 43737711000 65606566500 131213133000