Base | Representation |
---|---|
bin | 11011011011001… |
… | …00100000100111 |
3 | 121000212202001010 |
4 | 31231210200213 |
5 | 432343043311 |
6 | 34454433303 |
7 | 5462251134 |
oct | 1555444047 |
9 | 530782033 |
10 | 230049831 |
11 | 108947930 |
12 | 65062833 |
13 | 38878b7b |
14 | 227a558b |
15 | 152e2da6 |
hex | db64827 |
230049831 has 32 divisors (see below), whose sum is σ = 363909888. Its totient is φ = 127664640.
The previous prime is 230049823. The next prime is 230049857. The reversal of 230049831 is 138940032.
230049831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 230049831 - 23 = 230049823 is a prime.
It is a super-2 number, since 2×2300498312 = 105845849486257122, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230049881) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15216 + ... + 26298.
It is an arithmetic number, because the mean of its divisors is an integer number (11372184).
Almost surely, 2230049831 is an apocalyptic number.
230049831 is a deficient number, since it is larger than the sum of its proper divisors (133860057).
230049831 is a wasteful number, since it uses less digits than its factorization.
230049831 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11151.
The product of its (nonzero) digits is 5184, while the sum is 30.
The square root of 230049831 is about 15167.3936785461. The cubic root of 230049831 is about 612.7368122745.
Adding to 230049831 its reverse (138940032), we get a palindrome (368989863).
The spelling of 230049831 in words is "two hundred thirty million, forty-nine thousand, eight hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •