Base | Representation |
---|---|
bin | 11101110010111011… |
… | …110000010111011101 |
3 | 10001120122112201221111 |
4 | 131302323300113131 |
5 | 1011010204211201 |
6 | 22410345502021 |
7 | 2211550224100 |
oct | 356273602735 |
9 | 101518481844 |
10 | 31993038301 |
11 | 12628266224 |
12 | 624a4a1911 |
13 | 302b2727c3 |
14 | 1797010737 |
15 | c73ab3b51 |
hex | 772ef05dd |
31993038301 has 12 divisors (see below), whose sum is σ = 37343426652. Its totient is φ = 27328999488.
The previous prime is 31993038281. The next prime is 31993038347. The reversal of 31993038301 is 10383039913.
It can be written as a sum of positive squares in 2 ways, for example, as 17285412676 + 14707625625 = 131474^2 + 121275^2 .
It is not a de Polignac number, because 31993038301 - 229 = 31456167389 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31993038391) 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, 1099840 + ... + 1128553.
It is an arithmetic number, because the mean of its divisors is an integer number (3111952221).
Almost surely, 231993038301 is an apocalyptic number.
It is an amenable number.
31993038301 is a deficient number, since it is larger than the sum of its proper divisors (5350388351).
31993038301 is a wasteful number, since it uses less digits than its factorization.
31993038301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2228700 (or 2228693 counting only the distinct ones).
The product of its (nonzero) digits is 52488, while the sum is 40.
The spelling of 31993038301 in words is "thirty-one billion, nine hundred ninety-three million, thirty-eight thousand, three hundred one".
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