Base | Representation |
---|---|
bin | 11101001000101011… |
… | …001101101000010001 |
3 | 2222202020110211200120 |
4 | 131020223031220101 |
5 | 1003032204334031 |
6 | 22212141540453 |
7 | 2155151053023 |
oct | 351053155021 |
9 | 88666424616 |
10 | 31284058641 |
11 | 122a4043320 |
12 | 6090b74729 |
13 | 2c4740b104 |
14 | 172abba013 |
15 | c3171aa96 |
hex | 748acda11 |
31284058641 has 16 divisors (see below), whose sum is σ = 45836238528. Its totient is φ = 18821638400.
The previous prime is 31284058639. The next prime is 31284058651. The reversal of 31284058641 is 14685048213.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 31284058641 - 21 = 31284058639 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 31284058593 and 31284058602.
It is not an unprimeable number, because it can be changed into a prime (31284058601) 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, 3455340 + ... + 3464381.
It is an arithmetic number, because the mean of its divisors is an integer number (2864764908).
Almost surely, 231284058641 is an apocalyptic number.
It is an amenable number.
31284058641 is a deficient number, since it is larger than the sum of its proper divisors (14552179887).
31284058641 is a wasteful number, since it uses less digits than its factorization.
31284058641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6919872.
The product of its (nonzero) digits is 184320, while the sum is 42.
The spelling of 31284058641 in words is "thirty-one billion, two hundred eighty-four million, fifty-eight thousand, six hundred forty-one".
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