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131002443200 = 2652235636323
BaseRepresentation
bin111101000000001011…
…0101010010111000000
3110112010210012122011202
41322000112222113000
54121243111140300
6140103125000332
712315235252166
oct1720026522700
9415123178152
10131002443200
1150615511592
12214805530a8
13c479788aa5
1464aa691236
15361ad78ad5
hex1e805aa5c0

131002443200 has 168 divisors, whose sum is σ = 337013751168. Its totient is φ = 50025733120.

The previous prime is 131002443197. The next prime is 131002443211. The reversal of 131002443200 is 2344200131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20715239 + ... + 20721561.

Almost surely, 2131002443200 is an apocalyptic number.

131002443200 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 131002443200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168506875584).

131002443200 is an abundant number, since it is smaller than the sum of its proper divisors (206011307968).

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

131002443200 is a wasteful number, since it uses less digits than its factorization.

131002443200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6931 (or 6916 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 131002443200 its reverse (2344200131), we get a palindrome (133346643331).

The spelling of 131002443200 in words is "one hundred thirty-one billion, two million, four hundred forty-three thousand, two hundred".