Base | Representation |
---|---|
bin | 1000001110111001… |
… | …1110110010011111 |
3 | 12201000111122010000 |
4 | 2003232132302133 |
5 | 14011230000111 |
6 | 1003143545343 |
7 | 105523455531 |
oct | 20356366237 |
9 | 5630448100 |
10 | 2210000031 |
11 | a3453a808 |
12 | 51815b253 |
13 | 292b23235 |
14 | 16d721851 |
15 | ce044c56 |
hex | 83b9ec9f |
2210000031 has 40 divisors (see below), whose sum is σ = 3363389568. Its totient is φ = 1445850000.
The previous prime is 2209999969. The next prime is 2210000063. The reversal of 2210000031 is 1300000122.
It is a happy number.
It is not a de Polignac number, because 2210000031 - 217 = 2209868959 is a prime.
It is a super-2 number, since 2×22100000312 = 9768200274040001922, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 2209999968 and 2210000022.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2210000231) 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 39 ways as a sum of consecutive naturals, for example, 1442736 + ... + 1444266.
Almost surely, 22210000031 is an apocalyptic number.
2210000031 is a deficient number, since it is larger than the sum of its proper divisors (1153389537).
2210000031 is a wasteful number, since it uses less digits than its factorization.
2210000031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1865 (or 1856 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 9.
The square root of 2210000031 is about 47010.6374238852. The cubic root of 2210000031 is about 1302.5590678129.
Adding to 2210000031 its reverse (1300000122), we get a palindrome (3510000153).
Subtracting from 2210000031 its reverse (1300000122), we obtain a palindrome (909999909).
The spelling of 2210000031 in words is "two billion, two hundred ten million, thirty-one", and thus it is an aban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.763 sec. • engine limits •