Base | Representation |
---|---|
bin | 11100111100011001… |
… | …001011000100010011 |
3 | 2222012212202010102210 |
4 | 130330121023010103 |
5 | 1002121432043323 |
6 | 22135501243203 |
7 | 2150066444430 |
oct | 347431130423 |
9 | 88185663383 |
10 | 31078002963 |
11 | 121a87a4677 |
12 | 6033b63503 |
13 | 2c13813687 |
14 | 170b69cb87 |
15 | c1d5b7293 |
hex | 73c64b113 |
31078002963 has 16 divisors (see below), whose sum is σ = 47360158976. Its totient is φ = 17757658080.
The previous prime is 31078002953. The next prime is 31078003003. The reversal of 31078002963 is 36920087013.
It is not a de Polignac number, because 31078002963 - 213 = 31077994771 is a prime.
It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (31078002953) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337893 + ... + 419913.
It is an arithmetic number, because the mean of its divisors is an integer number (2960009936).
Almost surely, 231078002963 is an apocalyptic number.
31078002963 is a deficient number, since it is larger than the sum of its proper divisors (16282156013).
31078002963 is a wasteful number, since it uses less digits than its factorization.
31078002963 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 100074.
The product of its (nonzero) digits is 54432, while the sum is 39.
Adding to 31078002963 its reverse (36920087013), we get a palindrome (67998089976).
The spelling of 31078002963 in words is "thirty-one billion, seventy-eight million, two thousand, nine hundred sixty-three".
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