Base | Representation |
---|---|
bin | 11100111010111110… |
… | …110011001111010000 |
3 | 2222011020011112002112 |
4 | 130322332303033100 |
5 | 1002044400444100 |
6 | 22133253404452 |
7 | 2146361204636 |
oct | 347276631720 |
9 | 88136145075 |
10 | 31054312400 |
11 | 121963935a1 |
12 | 6028039728 |
13 | 2c0b93a4a7 |
14 | 1708493356 |
15 | c1b487b35 |
hex | 73afb33d0 |
31054312400 has 60 divisors (see below), whose sum is σ = 75721602912. Its totient is φ = 12236315520.
The previous prime is 31054312391. The next prime is 31054312423. The reversal of 31054312400 is 421345013.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 552572 + ... + 606171.
Almost surely, 231054312400 is an apocalyptic number.
It is an amenable number.
31054312400 is an abundant number, since it is smaller than the sum of its proper divisors (44667290512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31054312400 is a wasteful number, since it uses less digits than its factorization.
31054312400 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1158828 (or 1158817 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 23.
Adding to 31054312400 its reverse (421345013), we get a palindrome (31475657413).
The spelling of 31054312400 in words is "thirty-one billion, fifty-four million, three hundred twelve thousand, four hundred".
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