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3131300232000 = 263253371175413
BaseRepresentation
bin101101100100010000000…
…010011011101101000000
3102002100102200211011001200
4231210100002123231000
5402300400324411000
610354255515101200
7442141352546223
oct55442002335500
912070380734050
103131300232000
11aa7a82391406
12426a4a141800
13199384bc1185
14ab7acd435ba
15566bb7e1500
hex2d91009bb40

3131300232000 has 336 divisors, whose sum is σ = 11503927270992. Its totient is φ = 812444774400.

The previous prime is 3131300231957. The next prime is 3131300232077. The reversal of 3131300232000 is 2320031313.

3131300232000 is a `hidden beast` number, since 3 + 131 + 300 + 232 + 0 + 0 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 236102697216 + 2895197534784 = 485904^2 + 1701528^2 .

It is a super-2 number, since 2×31313002320002 (a number of 26 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2076294 + ... + 3251706.

Almost surely, 23131300232000 is an apocalyptic number.

3131300232000 is a gapful number since it is divisible by the number (30) 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 3131300232000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5751963635496).

3131300232000 is an abundant number, since it is smaller than the sum of its proper divisors (8372627038992).

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

3131300232000 is a wasteful number, since it uses less digits than its factorization.

3131300232000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175483 (or 1175460 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 3131300232000 its reverse (2320031313), we get a palindrome (3133620263313).

The spelling of 3131300232000 in words is "three trillion, one hundred thirty-one billion, three hundred million, two hundred thirty-two thousand".