Base | Representation |
---|---|
bin | 111111100000111… |
… | …1111111000010110 |
3 | 12111112021201020222 |
4 | 1333001333320112 |
5 | 13331043331410 |
6 | 551251354342 |
7 | 103546105133 |
oct | 17701777026 |
9 | 5445251228 |
10 | 2131230230 |
11 | 9a40298a8 |
12 | 4b58b29b2 |
13 | 27c703a9c |
14 | 16309958a |
15 | c7185955 |
hex | 7f07fe16 |
2131230230 has 16 divisors (see below), whose sum is σ = 3843558864. Its totient is φ = 850860000.
The previous prime is 2131230221. The next prime is 2131230349. The reversal of 2131230230 is 320321312.
It is a super-3 number, since 3×21312302303 (a number of 29 digits) contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2131230199 and 2131230208.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198521 + ... + 208980.
It is an arithmetic number, because the mean of its divisors is an integer number (240222429).
Almost surely, 22131230230 is an apocalyptic number.
2131230230 is a deficient number, since it is larger than the sum of its proper divisors (1712328634).
2131230230 is a wasteful number, since it uses less digits than its factorization.
2131230230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 408031.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 2131230230 is about 46165.2491599471. The cubic root of 2131230230 is about 1286.8960145660.
Adding to 2131230230 its reverse (320321312), we get a palindrome (2451551542).
The spelling of 2131230230 in words is "two billion, one hundred thirty-one million, two hundred thirty thousand, two hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •