Base | Representation |
---|---|
bin | 110010101100010010… |
… | …011100010011011111 |
3 | 12012111022212202020001 |
4 | 302230102130103133 |
5 | 1342433102420411 |
6 | 41001014235131 |
7 | 3634554261631 |
oct | 625422342337 |
9 | 165438782201 |
10 | 54430123231 |
11 | 210a1427220 |
12 | a670655aa7 |
13 | 519581bb13 |
14 | 28c4c4aa51 |
15 | 163877ddc1 |
hex | cac49c4df |
54430123231 has 16 divisors (see below), whose sum is σ = 62354677248. Its totient is φ = 47029039200.
The previous prime is 54430123177. The next prime is 54430123247. The reversal of 54430123231 is 13232103445.
It is a happy number.
It is not a de Polignac number, because 54430123231 - 219 = 54429598943 is a prime.
It is a super-2 number, since 2×544301232312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 54430123231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54430121231) 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 15 ways as a sum of consecutive naturals, for example, 645435 + ... + 724876.
It is an arithmetic number, because the mean of its divisors is an integer number (3897167328).
Almost surely, 254430123231 is an apocalyptic number.
54430123231 is a deficient number, since it is larger than the sum of its proper divisors (7924554017).
54430123231 is a wasteful number, since it uses less digits than its factorization.
54430123231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1370502.
The product of its (nonzero) digits is 8640, while the sum is 28.
Adding to 54430123231 its reverse (13232103445), we get a palindrome (67662226676).
The spelling of 54430123231 in words is "fifty-four billion, four hundred thirty million, one hundred twenty-three thousand, two hundred thirty-one".
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