Base | Representation |
---|---|
bin | 10011000001010111… |
… | …01100100110110111 |
3 | 222100200200110111212 |
4 | 21200223230212313 |
5 | 131403233032411 |
6 | 4405154352035 |
7 | 511030405154 |
oct | 114053544667 |
9 | 28320613455 |
10 | 10212002231 |
11 | 4370455472 |
12 | 1b8bb8b61b |
13 | c698b7792 |
14 | 6cc38b22b |
15 | 3eb7d868b |
hex | 260aec9b7 |
10212002231 has 4 divisors (see below), whose sum is σ = 10656002352. Its totient is φ = 9768002112.
The previous prime is 10212002209. The next prime is 10212002239. The reversal of 10212002231 is 13220021201.
It is a happy number.
10212002231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 10212002231 - 26 = 10212002167 is a prime.
It is a super-2 number, since 2×102120022312 (a number of 21 digits) 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 (10212002239) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222000026 + ... + 222000071.
It is an arithmetic number, because the mean of its divisors is an integer number (2664000588).
Almost surely, 210212002231 is an apocalyptic number.
10212002231 is a deficient number, since it is larger than the sum of its proper divisors (444000121).
10212002231 is an equidigital number, since it uses as much as digits as its factorization.
10212002231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 444000120.
The product of its (nonzero) digits is 48, while the sum is 14.
Adding to 10212002231 its reverse (13220021201), we get a palindrome (23432023432).
The spelling of 10212002231 in words is "ten billion, two hundred twelve million, two thousand, two hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •