Base | Representation |
---|---|
bin | 10010100000001… |
… | …100110100101111 |
3 | 210122010112022022 |
4 | 102200030310233 |
5 | 1113432243043 |
6 | 50445340355 |
7 | 10456422500 |
oct | 2240146457 |
9 | 718115268 |
10 | 310431023 |
11 | 14a259471 |
12 | 87b676bb |
13 | 4c4108c6 |
14 | 2d32aba7 |
15 | 1c3be868 |
hex | 1280cd2f |
310431023 has 12 divisors (see below), whose sum is σ = 376815600. Its totient is φ = 254513952.
The previous prime is 310430983. The next prime is 310431029. The reversal of 310431023 is 320134013.
It is a happy number.
It is not a de Polignac number, because 310431023 - 214 = 310414639 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 310430992 and 310431010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (310431029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136598 + ... + 138851.
It is an arithmetic number, because the mean of its divisors is an integer number (31401300).
Almost surely, 2310431023 is an apocalyptic number.
310431023 is a deficient number, since it is larger than the sum of its proper divisors (66384577).
310431023 is a wasteful number, since it uses less digits than its factorization.
310431023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 275486 (or 275479 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 310431023 is about 17619.0528406041. The cubic root of 310431023 is about 677.1034688004.
Adding to 310431023 its reverse (320134013), we get a palindrome (630565036).
The spelling of 310431023 in words is "three hundred ten million, four hundred thirty-one thousand, twenty-three".
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