Base | Representation |
---|---|
bin | 100111000111100001… |
… | …011010010100110111 |
3 | 11000102012102021212000 |
4 | 213013201122110313 |
5 | 1142010021131411 |
6 | 31143455230343 |
7 | 3014565134115 |
oct | 470741322467 |
9 | 130365367760 |
10 | 42002130231 |
11 | 168a4120126 |
12 | 81825183b3 |
13 | 3c64ac43c9 |
14 | 206645cab5 |
15 | 115c66a956 |
hex | 9c785a537 |
42002130231 has 64 divisors (see below), whose sum is σ = 67148144640. Its totient is φ = 25853230080.
The previous prime is 42002130221. The next prime is 42002130239. The reversal of 42002130231 is 13203120024.
42002130231 is a `hidden beast` number, since 420 + 0 + 2 + 13 + 0 + 231 = 666.
It is not a de Polignac number, because 42002130231 - 26 = 42002130167 is a prime.
It is a super-2 number, since 2×420021302312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42002130239) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6396556 + ... + 6403118.
It is an arithmetic number, because the mean of its divisors is an integer number (1049189760).
Almost surely, 242002130231 is an apocalyptic number.
42002130231 is a deficient number, since it is larger than the sum of its proper divisors (25146014409).
42002130231 is a wasteful number, since it uses less digits than its factorization.
42002130231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6853 (or 6847 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 42002130231 its reverse (13203120024), we get a palindrome (55205250255).
The spelling of 42002130231 in words is "forty-two billion, two million, one hundred thirty thousand, two hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.020 sec. • engine limits •