Base | Representation |
---|---|
bin | 11100111000001111… |
… | …101100100111100101 |
3 | 2222001000210102221210 |
4 | 130320033230213211 |
5 | 1002001123110320 |
6 | 22124533502033 |
7 | 2145263064642 |
oct | 347017544745 |
9 | 88030712853 |
10 | 31008410085 |
11 | 121724914a4 |
12 | 60147a1919 |
13 | 2c02288263 |
14 | 1702344dc9 |
15 | c1741c0e0 |
hex | 7383ec9e5 |
31008410085 has 32 divisors (see below), whose sum is σ = 50837859072. Its totient is φ = 16129912320.
The previous prime is 31008410029. The next prime is 31008410087. The reversal of 31008410085 is 58001480013.
It is not a de Polignac number, because 31008410085 - 215 = 31008377317 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31008410087) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4281087 + ... + 4288323.
It is an arithmetic number, because the mean of its divisors is an integer number (1588683096).
Almost surely, 231008410085 is an apocalyptic number.
It is an amenable number.
31008410085 is a deficient number, since it is larger than the sum of its proper divisors (19829448987).
31008410085 is a wasteful number, since it uses less digits than its factorization.
31008410085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14253.
The product of its (nonzero) digits is 3840, while the sum is 30.
Adding to 31008410085 its reverse (58001480013), we get a palindrome (89009890098).
The spelling of 31008410085 in words is "thirty-one billion, eight million, four hundred ten thousand, eighty-five".
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