Base | Representation |
---|---|
bin | 11001000010001… |
… | …11111110101111 |
3 | 112122011121121022 |
4 | 30201013332233 |
5 | 412230310111 |
6 | 32501124355 |
7 | 5130025100 |
oct | 1441077657 |
9 | 478147538 |
10 | 210010031 |
11 | a85aa710 |
12 | 5a3b96bb |
13 | 346805ba |
14 | 1dc6a3a7 |
15 | 136852db |
hex | c847faf |
210010031 has 12 divisors (see below), whose sum is σ = 266506920. Its totient is φ = 163643760.
The previous prime is 210010001. The next prime is 210010037. The reversal of 210010031 is 130010012.
It is a de Polignac number, because none of the positive numbers 2k-210010031 is a prime.
It is a super-2 number, since 2×2100100312 = 88208426241241922, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (210010037) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194276 + ... + 195353.
It is an arithmetic number, because the mean of its divisors is an integer number (22208910).
Almost surely, 2210010031 is an apocalyptic number.
210010031 is a deficient number, since it is larger than the sum of its proper divisors (56496889).
210010031 is a wasteful number, since it uses less digits than its factorization.
210010031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 389654 (or 389647 counting only the distinct ones).
The product of its (nonzero) digits is 6, while the sum is 8.
The square root of 210010031 is about 14491.7228444378. The cubic root of 210010031 is about 594.4016591702.
Adding to 210010031 its reverse (130010012), we get a palindrome (340020043).
The spelling of 210010031 in words is "two hundred ten million, ten thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.126 sec. • engine limits •