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200131131000 = 2335366710377
BaseRepresentation
bin1011101001100010111…
…1101011011001111000
3201010120111000211102010
42322120233223121320
511234332032143000
6231534452405520
720313302355063
oct2723057533170
9633514024363
10200131131000
1177969895929
12329536168a0
1315b45542698
1499876978da
155314c27d50
hex2e98beb678

200131131000 has 64 divisors (see below), whose sum is σ = 624409138080. Its totient is φ = 53368300800.

The previous prime is 200131130989. The next prime is 200131131001. The reversal of 200131131000 is 131131002.

It is a super-2 number, since 2×2001311310002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200131131001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33352189 + ... + 33358188.

Almost surely, 2200131131000 is an apocalyptic number.

200131131000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200131131000 is an abundant number, since it is smaller than the sum of its proper divisors (424278007080).

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

200131131000 is a wasteful number, since it uses less digits than its factorization.

200131131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66710401 (or 66710387 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 200131131000 its reverse (131131002), we get a palindrome (200262262002).

The spelling of 200131131000 in words is "two hundred billion, one hundred thirty-one million, one hundred thirty-one thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 125 150 200 250 300 375 500 600 750 1000 1500 3000 66710377 133420754 200131131 266841508 333551885 400262262 533683016 667103770 800524524 1000655655 1334207540 1601049048 1667759425 2001311310 2668415080 3335518850 4002622620 5003278275 6671037700 8005245240 8338797125 10006556550 13342075400 16677594250 20013113100 25016391375 33355188500 40026226200 50032782750 66710377000 100065565500 200131131000