Base | Representation |
---|---|
bin | 11101001000100100… |
… | …100000001110011111 |
3 | 2222202010011111000120 |
4 | 131020210200032133 |
5 | 1003031232043212 |
6 | 22212040130023 |
7 | 2155130106153 |
oct | 351044401637 |
9 | 88663144016 |
10 | 31282299807 |
11 | 122a3051940 |
12 | 6090466913 |
13 | 2c46c43695 |
14 | 172a87d063 |
15 | c314be88c |
hex | 74892039f |
31282299807 has 16 divisors (see below), whose sum is σ = 46247456640. Its totient is φ = 18648165600.
The previous prime is 31282299787. The next prime is 31282299817. The reversal of 31282299807 is 70899228213.
It is not a de Polignac number, because 31282299807 - 210 = 31282298783 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 31282299807.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31282299817) 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, 7768057 + ... + 7772082.
It is an arithmetic number, because the mean of its divisors is an integer number (2890466040).
Almost surely, 231282299807 is an apocalyptic number.
31282299807 is a deficient number, since it is larger than the sum of its proper divisors (14965156833).
31282299807 is a wasteful number, since it uses less digits than its factorization.
31282299807 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15540214.
The product of its (nonzero) digits is 870912, while the sum is 51.
The spelling of 31282299807 in words is "thirty-one billion, two hundred eighty-two million, two hundred ninety-nine thousand, eight hundred seven".
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