| Base | Representation |
|---|---|
| bin | 1110011000100110010011… |
| … | …00100110111011010110100 |
| 3 | 11010222221111002101121101100 |
| 4 | 13030103021210313122310 |
| 5 | 13121222323342133330 |
| 6 | 151135153053330100 |
| 7 | 6443205402461106 |
| oct | 714231144673264 |
| 9 | 133887432347340 |
| 10 | 31631521052340 |
| 11 | a095942002720 |
| 12 | 366a498496930 |
| 13 | 1485abb8b0a41 |
| 14 | 7b4d8c105576 |
| 15 | 39cc1d7de060 |
| hex | 1cc4c99376b4 |
31631521052340 has 288 divisors, whose sum is σ = 107065085976576. Its totient is φ = 7493407153920.
The previous prime is 31631521052333. The next prime is 31631521052357. The reversal of 31631521052340 is 4325012513613.
31631521052340 is a `hidden beast` number, since 3 + 1 + 6 + 31 + 52 + 10 + 523 + 40 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 31631521052295 and 31631521052304.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 59573269 + ... + 60101891.
It is an arithmetic number, because the mean of its divisors is an integer number (371753770752).
Almost surely, 231631521052340 is an apocalyptic number.
31631521052340 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 31631521052340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53532542988288).
31631521052340 is an abundant number, since it is smaller than the sum of its proper divisors (75433564924236).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31631521052340 is a wasteful number, since it uses less digits than its factorization.
31631521052340 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 529339 (or 529334 counting only the distinct ones).
The product of its (nonzero) digits is 64800, while the sum is 36.
Adding to 31631521052340 its reverse (4325012513613), we get a palindrome (35956533565953).
The spelling of 31631521052340 in words is "thirty-one trillion, six hundred thirty-one billion, five hundred twenty-one million, fifty-two thousand, three hundred forty".
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