Base | Representation |
---|---|
bin | 11101000101011101… |
… | …011011101010001000 |
3 | 2222121110222012011012 |
4 | 131011131123222020 |
5 | 1002424402130230 |
6 | 22202533423052 |
7 | 2153624410220 |
oct | 350535335210 |
9 | 88543865135 |
10 | 31230114440 |
11 | 12276649238 |
12 | 6076a9aa88 |
13 | 2c391a1675 |
14 | 1723977080 |
15 | c2bb12395 |
hex | 74575ba88 |
31230114440 has 64 divisors (see below), whose sum is σ = 82014681600. Its totient is φ = 10479644928.
The previous prime is 31230114397. The next prime is 31230114467. The reversal of 31230114440 is 4441103213.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1173395 + ... + 1199714.
It is an arithmetic number, because the mean of its divisors is an integer number (1281479400).
Almost surely, 231230114440 is an apocalyptic number.
It is an amenable number.
31230114440 is an abundant number, since it is smaller than the sum of its proper divisors (50784567160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31230114440 is a wasteful number, since it uses less digits than its factorization.
31230114440 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2373174 (or 2373170 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 23.
Adding to 31230114440 its reverse (4441103213), we get a palindrome (35671217653).
The spelling of 31230114440 in words is "thirty-one billion, two hundred thirty million, one hundred fourteen thousand, four hundred forty".
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