Base | Representation |
---|---|
bin | 11100111001001000… |
… | …100011010101000100 |
3 | 2222002001211122121200 |
4 | 130321020203111010 |
5 | 1002013432023434 |
6 | 22130225142500 |
7 | 2145533551206 |
oct | 347110432504 |
9 | 88061748550 |
10 | 31023314244 |
11 | 1217a94118a |
12 | 601978aa30 |
13 | 2c053a60a0 |
14 | 1704304776 |
15 | c188b3199 |
hex | 739223544 |
31023314244 has 36 divisors (see below), whose sum is σ = 84452356716. Its totient is φ = 9545635008.
The previous prime is 31023314237. The next prime is 31023314249. The reversal of 31023314244 is 44241332013.
31023314244 is a `hidden beast` number, since 3 + 1 + 0 + 233 + 1 + 424 + 4 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 8370054144 + 22653260100 = 91488^2 + 150510^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is not an unprimeable number, because it can be changed into a prime (31023314249) 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, 33144099 + ... + 33145034.
Almost surely, 231023314244 is an apocalyptic number.
It is an amenable number.
31023314244 is an abundant number, since it is smaller than the sum of its proper divisors (53429042472).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31023314244 is a wasteful number, since it uses less digits than its factorization.
31023314244 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66289156 (or 66289151 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 27.
Adding to 31023314244 its reverse (44241332013), we get a palindrome (75264646257).
The spelling of 31023314244 in words is "thirty-one billion, twenty-three million, three hundred fourteen thousand, two hundred forty-four".
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