Base | Representation |
---|---|
bin | 11101001101111000… |
… | …101010111100101011 |
3 | 2222222022221221012200 |
4 | 131031320222330223 |
5 | 1003222044111213 |
6 | 22224543311243 |
7 | 2160262055325 |
oct | 351570527453 |
9 | 88868857180 |
10 | 31371472683 |
11 | 12339418831 |
12 | 60b62ab523 |
13 | 2c5c565cb5 |
14 | 1738652615 |
15 | c39236273 |
hex | 74de2af2b |
31371472683 has 12 divisors (see below), whose sum is σ = 45374697888. Its totient is φ = 20886462000.
The previous prime is 31371472669. The next prime is 31371472723. The reversal of 31371472683 is 38627417313.
31371472683 is a `hidden beast` number, since 31 + 3 + 71 + 472 + 6 + 83 = 666.
It is not a de Polignac number, because 31371472683 - 26 = 31371472619 is a prime.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (31371472283) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2313960 + ... + 2327477.
It is an arithmetic number, because the mean of its divisors is an integer number (3781224824).
Almost surely, 231371472683 is an apocalyptic number.
31371472683 is a deficient number, since it is larger than the sum of its proper divisors (14003225205).
31371472683 is a wasteful number, since it uses less digits than its factorization.
31371472683 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4642194 (or 4642191 counting only the distinct ones).
The product of its digits is 508032, while the sum is 45.
Adding to 31371472683 its reverse (38627417313), we get a palindrome (69998889996).
The spelling of 31371472683 in words is "thirty-one billion, three hundred seventy-one million, four hundred seventy-two thousand, six hundred eighty-three".
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