Base | Representation |
---|---|
bin | 11100111001100110… |
… | …011010111001000001 |
3 | 2222002121120110000200 |
4 | 130321212122321001 |
5 | 1002022433102001 |
6 | 22131105035413 |
7 | 2145660241404 |
oct | 347146327101 |
9 | 88077513020 |
10 | 31031144001 |
11 | 121842a9860 |
12 | 6020325b69 |
13 | 2c06bb7b90 |
14 | 1705381d3b |
15 | c1940d086 |
hex | 73999ae41 |
31031144001 has 48 divisors (see below), whose sum is σ = 53445013440. Its totient is φ = 17100927360.
The previous prime is 31031143981. The next prime is 31031144009. The reversal of 31031144001 is 10044113013.
31031144001 is a `hidden beast` number, since 310 + 311 + 4 + 40 + 0 + 1 = 666.
It is not a de Polignac number, because 31031144001 - 27 = 31031143873 is a prime.
It is not an unprimeable number, because it can be changed into a prime (31031144009) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93706 + ... + 266163.
It is an arithmetic number, because the mean of its divisors is an integer number (1113437780).
Almost surely, 231031144001 is an apocalyptic number.
It is an amenable number.
31031144001 is a deficient number, since it is larger than the sum of its proper divisors (22413869439).
31031144001 is a wasteful number, since it uses less digits than its factorization.
31031144001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 359966 (or 359963 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 31031144001 its reverse (10044113013), we get a palindrome (41075257014).
The spelling of 31031144001 in words is "thirty-one billion, thirty-one million, one hundred forty-four thousand, one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •