Base | Representation |
---|---|
bin | 11011011011101… |
… | …00011011100010 |
3 | 121001000001111100 |
4 | 31231310123202 |
5 | 432402140132 |
6 | 34500055230 |
7 | 5462642223 |
oct | 1555643342 |
9 | 531001440 |
10 | 230115042 |
11 | 108991923 |
12 | 65094516 |
13 | 3889c761 |
14 | 227c124a |
15 | 1530737c |
hex | db746e2 |
230115042 has 48 divisors (see below), whose sum is σ = 537657120. Its totient is φ = 70891200.
The previous prime is 230115007. The next prime is 230115049. The reversal of 230115042 is 240511032.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (230115049) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5817 + ... + 22227.
It is an arithmetic number, because the mean of its divisors is an integer number (11201190).
Almost surely, 2230115042 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 230115042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268828560).
230115042 is an abundant number, since it is smaller than the sum of its proper divisors (307542078).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230115042 is a wasteful number, since it uses less digits than its factorization.
230115042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16479 (or 16476 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 230115042 is about 15169.5432363667. The cubic root of 230115042 is about 612.7947032182.
Adding to 230115042 its reverse (240511032), we get a palindrome (470626074).
The spelling of 230115042 in words is "two hundred thirty million, one hundred fifteen thousand, forty-two".
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