Base | Representation |
---|---|
bin | 11101000101101101… |
… | …110111110101010111 |
3 | 2222121210002010222010 |
4 | 131011231313311113 |
5 | 1002432003033101 |
6 | 22203210035303 |
7 | 2154006140040 |
oct | 350555676527 |
9 | 88553063863 |
10 | 31234424151 |
11 | 12279022187 |
12 | 6078418b33 |
13 | 2c3a0501a8 |
14 | 17243798c7 |
15 | c2c1b42d6 |
hex | 745b77d57 |
31234424151 has 16 divisors (see below), whose sum is σ = 48702182144. Its totient is φ = 17433166464.
The previous prime is 31234424149. The next prime is 31234424183. The reversal of 31234424151 is 15142443213.
It is not a de Polignac number, because 31234424151 - 21 = 31234424149 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31234424101) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17293906 + ... + 17295711.
It is an arithmetic number, because the mean of its divisors is an integer number (3043886384).
Almost surely, 231234424151 is an apocalyptic number.
31234424151 is a deficient number, since it is larger than the sum of its proper divisors (17467757993).
31234424151 is a wasteful number, since it uses less digits than its factorization.
31234424151 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34589670.
The product of its digits is 11520, while the sum is 30.
Adding to 31234424151 its reverse (15142443213), we get a palindrome (46376867364).
The spelling of 31234424151 in words is "thirty-one billion, two hundred thirty-four million, four hundred twenty-four thousand, one hundred fifty-one".
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