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3131330202000 = 24325372112133761
BaseRepresentation
bin101101100100010001110…
…100110000100110010000
3102002100111210012210011200
4231210101310300212100
5402300431012431000
610354302505311200
7442142165361300
oct55442164604620
912070453183150
103131330202000
11aa7a982a1300
12426a58195500
1319938b1855c0
14ab7b2d05600
15566be261500
hex2d911d30990

3131330202000 has 4320 divisors, whose sum is σ = 15720250527072. Its totient is φ = 574801920000.

The previous prime is 3131330201941. The next prime is 3131330202017. The reversal of 3131330202000 is 2020331313.

3131330202000 is a `hidden beast` number, since 3 + 131 + 330 + 2 + 0 + 200 + 0 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 2852964221184 + 278365980816 = 1689072^2 + 527604^2 .

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

It is a polite number, since it can be written in 863 ways as a sum of consecutive naturals, for example, 51333281970 + ... + 51333282030.

Almost surely, 23131330202000 is an apocalyptic number.

3131330202000 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 3131330202000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7860125263536).

3131330202000 is an abundant number, since it is smaller than the sum of its proper divisors (12588920325072).

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

3131330202000 is a wasteful number, since it uses less digits than its factorization.

3131330202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 139 counting only the distinct ones).

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

Adding to 3131330202000 its reverse (2020331313), we get a palindrome (3133350533313).

The spelling of 3131330202000 in words is "three trillion, one hundred thirty-one billion, three hundred thirty million, two hundred two thousand".