Base | Representation |
---|---|
bin | 11101010000111001… |
… | …011101001101110111 |
3 | 10000002212001111200201 |
4 | 131100321131031313 |
5 | 1003323013311411 |
6 | 22233550421331 |
7 | 2161444452163 |
oct | 352071351567 |
9 | 100085044621 |
10 | 31422010231 |
11 | 123649a63a7 |
12 | 610b201847 |
13 | 2c69b7bc81 |
14 | 1741249ca3 |
15 | c3d8ba3c1 |
hex | 750e5d377 |
31422010231 has 16 divisors (see below), whose sum is σ = 33681528000. Its totient is φ = 29311425024.
The previous prime is 31422010219. The next prime is 31422010267. The reversal of 31422010231 is 13201022413.
It is a happy number.
It is not a de Polignac number, because 31422010231 - 219 = 31421485943 is a prime.
It is a super-2 number, since 2×314220102312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31422010199 and 31422010208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31422010031) 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, 526870 + ... + 583468.
It is an arithmetic number, because the mean of its divisors is an integer number (2105095500).
Almost surely, 231422010231 is an apocalyptic number.
31422010231 is a deficient number, since it is larger than the sum of its proper divisors (2259517769).
31422010231 is an equidigital number, since it uses as much as digits as its factorization.
31422010231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56763 (or 56729 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 31422010231 its reverse (13201022413), we get a palindrome (44623032644).
The spelling of 31422010231 in words is "thirty-one billion, four hundred twenty-two million, ten thousand, two hundred thirty-one".
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