Base | Representation |
---|---|
bin | 1110001100010101101111… |
… | …00001101000100001111000 |
3 | 11002111200021021011021112220 |
4 | 13012022313201220201320 |
5 | 13042322204210420044 |
6 | 150213452533204040 |
7 | 6400604416616262 |
oct | 706126741504170 |
9 | 132450237137486 |
10 | 31210311420024 |
11 | 9a43245166680 |
12 | 3600926190620 |
13 | 14551730b0209 |
14 | 79c831140b32 |
15 | 391cb9d8a019 |
hex | 1c62b7868878 |
31210311420024 has 64 divisors (see below), whose sum is σ = 85120732621440. Its totient is φ = 9457481074560.
The previous prime is 31210311420023. The next prime is 31210311420031. The reversal of 31210311420024 is 42002411301213.
It is a super-2 number, since 2×312103114200242 (a number of 28 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a junction number, because it is equal to n+sod(n) for n = 31210311419976 and 31210311420003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31210311420023) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12343099 + ... + 14655125.
It is an arithmetic number, because the mean of its divisors is an integer number (1330011447210).
Almost surely, 231210311420024 is an apocalyptic number.
It is an amenable number.
31210311420024 is an abundant number, since it is smaller than the sum of its proper divisors (53910421201416).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31210311420024 is a wasteful number, since it uses less digits than its factorization.
31210311420024 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2363180 (or 2363176 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 24.
Adding to 31210311420024 its reverse (42002411301213), we get a palindrome (73212722721237).
The spelling of 31210311420024 in words is "thirty-one trillion, two hundred ten billion, three hundred eleven million, four hundred twenty thousand, twenty-four".
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