Base | Representation |
---|---|
bin | 11101001011101101… |
… | …010111000101100000 |
3 | 2222212210020120001101 |
4 | 131023231113011200 |
5 | 1003133222001222 |
6 | 22221200444144 |
7 | 2156336465005 |
oct | 351355270540 |
9 | 88783216041 |
10 | 31334953312 |
11 | 1231a845233 |
12 | 60a6019654 |
13 | 2c54b1a7c0 |
14 | 17338678ac |
15 | c35e20927 |
hex | 74bb57160 |
31334953312 has 24 divisors (see below), whose sum is σ = 66436127856. Its totient is φ = 14462285952.
The previous prime is 31334953289. The next prime is 31334953313. The reversal of 31334953312 is 21335943313.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31334953313) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37661788 + ... + 37662619.
It is an arithmetic number, because the mean of its divisors is an integer number (2768171994).
Almost surely, 231334953312 is an apocalyptic number.
31334953312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
31334953312 is an abundant number, since it is smaller than the sum of its proper divisors (35101174544).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31334953312 is a wasteful number, since it uses less digits than its factorization.
31334953312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75324430 (or 75324422 counting only the distinct ones).
The product of its digits is 87480, while the sum is 37.
Subtracting from 31334953312 its reverse (21335943313), we obtain a palindrome (9999009999).
The spelling of 31334953312 in words is "thirty-one billion, three hundred thirty-four million, nine hundred fifty-three thousand, three hundred twelve".
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