Base | Representation |
---|---|
bin | 1110001100111010011100… |
… | …11011110100000001010000 |
3 | 11002120120011000012112122222 |
4 | 13012131032123310001100 |
5 | 13043133041404414044 |
6 | 150230512523320212 |
7 | 6402203041415165 |
oct | 706351633640120 |
9 | 132516130175588 |
10 | 31230023123024 |
11 | 9a5063a984910 |
12 | 3604707680068 |
13 | 1456c94b26abb |
14 | 79d78101c06c |
15 | 3925706598ee |
hex | 1c674e6f4050 |
31230023123024 has 80 divisors (see below), whose sum is σ = 66289967170560. Its totient is φ = 14135031953280.
The previous prime is 31230023122997. The next prime is 31230023123063. The reversal of 31230023123024 is 42032132003213.
It is a happy number.
It is a super-2 number, since 2×312300231230242 (a number of 28 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 31230023122984 and 31230023123002.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120024187 + ... + 1120052069.
It is an arithmetic number, because the mean of its divisors is an integer number (828624589632).
Almost surely, 231230023123024 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 31230023123024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33144983585280).
31230023123024 is an abundant number, since it is smaller than the sum of its proper divisors (35059944047536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31230023123024 is a wasteful number, since it uses less digits than its factorization.
31230023123024 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 54768 (or 54762 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 26.
Adding to 31230023123024 its reverse (42032132003213), we get a palindrome (73262155126237).
The spelling of 31230023123024 in words is "thirty-one trillion, two hundred thirty billion, twenty-three million, one hundred twenty-three thousand, twenty-four".
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