Base | Representation |
---|---|
bin | 11101000000101111… |
… | …111001011101001001 |
3 | 2222101222020021012100 |
4 | 131000233321131021 |
5 | 1002244133202001 |
6 | 22151031304013 |
7 | 2151644501103 |
oct | 350057713511 |
9 | 88358207170 |
10 | 31151069001 |
11 | 12235a6a228 |
12 | 605451b009 |
13 | 2c259b6910 |
14 | 171727c573 |
15 | c24beb586 |
hex | 740bf9749 |
31151069001 has 48 divisors (see below), whose sum is σ = 49104291600. Its totient is φ = 18915434496.
The previous prime is 31151068987. The next prime is 31151069009. The reversal of 31151069001 is 10096015113.
It can be written as a sum of positive squares in 8 ways, for example, as 42575625 + 31108493376 = 6525^2 + 176376^2 .
It is not a de Polignac number, because 31151069001 - 26 = 31151068937 is a prime.
It is not an unprimeable number, because it can be changed into a prime (31151069009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3022465 + ... + 3032753.
It is an arithmetic number, because the mean of its divisors is an integer number (1023006075).
Almost surely, 231151069001 is an apocalyptic number.
It is an amenable number.
31151069001 is a deficient number, since it is larger than the sum of its proper divisors (17953222599).
31151069001 is a wasteful number, since it uses less digits than its factorization.
31151069001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10650 (or 10647 counting only the distinct ones).
The product of its (nonzero) digits is 810, while the sum is 27.
The spelling of 31151069001 in words is "thirty-one billion, one hundred fifty-one million, sixty-nine thousand, one".
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