Base | Representation |
---|---|
bin | 11011011011110… |
… | …01111111110101 |
3 | 121001001012202220 |
4 | 31231321333311 |
5 | 432403402340 |
6 | 34500352553 |
7 | 5463065550 |
oct | 1555717765 |
9 | 531035686 |
10 | 230137845 |
11 | 1089a7a73 |
12 | 650a5759 |
13 | 388a9c52 |
14 | 227c9697 |
15 | 1530ded0 |
hex | db79ff5 |
230137845 has 32 divisors (see below), whose sum is σ = 421908480. Its totient is φ = 104934720.
The previous prime is 230137837. The next prime is 230137877. The reversal of 230137845 is 548731032.
It is not a de Polignac number, because 230137845 - 23 = 230137837 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41380 + ... + 46610.
It is an arithmetic number, because the mean of its divisors is an integer number (13184640).
Almost surely, 2230137845 is an apocalyptic number.
It is an amenable number.
230137845 is a deficient number, since it is larger than the sum of its proper divisors (191770635).
230137845 is a wasteful number, since it uses less digits than its factorization.
230137845 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5665.
The product of its (nonzero) digits is 20160, while the sum is 33.
The square root of 230137845 is about 15170.2948224482. The cubic root of 230137845 is about 612.8149439580.
Adding to 230137845 its reverse (548731032), we get a palindrome (778868877).
It can be divided in two parts, 230 and 137845, that added together give a triangular number (138075 = T525).
The spelling of 230137845 in words is "two hundred thirty million, one hundred thirty-seven thousand, eight hundred forty-five".
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