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3131212020300 = 223252713376431607
BaseRepresentation
bin101101100100001010110…
…001111011101001001100
3102002100012112211112100200
4231210022301323221030
5402300210234122200
610354243044253500
7442136232012240
oct55441261735114
912070175745320
103131212020300
11aa7a37611681
12426a246a1290
1319936c8471c0
14ab7a1340420
15566b3bb9800
hex2d90ac7ba4c

3131212020300 has 864 divisors, whose sum is σ = 12433019569152. Its totient is φ = 641396828160.

The previous prime is 3131212020289. The next prime is 3131212020467. The reversal of 3131212020300 is 30202121313.

3131212020300 is a `hidden beast` number, since 3 + 131 + 212 + 0 + 20 + 300 = 666.

3131212020300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×31312120203002 (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 an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1948482097 + ... + 1948483703.

Almost surely, 23131212020300 is an apocalyptic number.

3131212020300 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 3131212020300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6216509784576).

3131212020300 is an abundant number, since it is smaller than the sum of its proper divisors (9301807548852).

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

3131212020300 is a wasteful number, since it uses less digits than its factorization.

3131212020300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327 (or 2317 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 3131212020300 its reverse (30202121313), we get a palindrome (3161414141613).

The spelling of 3131212020300 in words is "three trillion, one hundred thirty-one billion, two hundred twelve million, twenty thousand, three hundred".