Base | Representation |
---|---|
bin | 1010000100011… |
… | …0010011110110 |
3 | 2221110120002020 |
4 | 2201012103312 |
5 | 41302343110 |
6 | 4105054010 |
7 | 1021646352 |
oct | 241062366 |
9 | 87416066 |
10 | 42231030 |
11 | 21924886 |
12 | 12187306 |
13 | 899819a |
14 | 5874462 |
15 | 3a92d70 |
hex | 28464f6 |
42231030 has 64 divisors (see below), whose sum is σ = 104232960. Its totient is φ = 10947456.
The previous prime is 42231019. The next prime is 42231041. The reversal of 42231030 is 3013224.
It is an interprime number because it is at equal distance from previous prime (42231019) and next prime (42231041).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a Curzon number.
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, 244024 + ... + 244196.
It is an arithmetic number, because the mean of its divisors is an integer number (1628640).
Almost surely, 242231030 is an apocalyptic number.
42231030 is an abundant number, since it is smaller than the sum of its proper divisors (62001930).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42231030 is a wasteful number, since it uses less digits than its factorization.
42231030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 365.
The product of its (nonzero) digits is 144, while the sum is 15.
The square root of 42231030 is about 6498.5406053975. The cubic root of 42231030 is about 348.2388537263.
Adding to 42231030 its reverse (3013224), we get a palindrome (45244254).
It can be divided in two parts, 4223 and 1030, that added together give a triangular number (5253 = T102).
The spelling of 42231030 in words is "forty-two million, two hundred thirty-one thousand, thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •