Base | Representation |
---|---|
bin | 1100111110011… |
… | …0001111001111 |
3 | 10210101211210112 |
4 | 3033212033033 |
5 | 102412423211 |
6 | 5222230235 |
7 | 1230365102 |
oct | 317461717 |
9 | 123354715 |
10 | 54420431 |
11 | 2879a96a |
12 | 1628537b |
13 | b375450 |
14 | 7328739 |
15 | 4b9e88b |
hex | 33e63cf |
54420431 has 8 divisors (see below), whose sum is σ = 58673664. Its totient is φ = 50176800.
The previous prime is 54420419. The next prime is 54420433. The reversal of 54420431 is 13402445.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 54420431 - 214 = 54404047 is a prime.
It is a super-2 number, since 2×544204312 = 5923166620451522, which contains 22 as substring.
It is a Duffinian number.
It is a zygodrome in base 2.
It is a junction number, because it is equal to n+sod(n) for n = 54420397 and 54420406.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54420433) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13145 + ... + 16781.
It is an arithmetic number, because the mean of its divisors is an integer number (7334208).
Almost surely, 254420431 is an apocalyptic number.
54420431 is a deficient number, since it is larger than the sum of its proper divisors (4253233).
54420431 is a wasteful number, since it uses less digits than its factorization.
54420431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4801.
The product of its (nonzero) digits is 1920, while the sum is 23.
The square root of 54420431 is about 7377.0204689970. The cubic root of 54420431 is about 378.9547243228.
Adding to 54420431 its reverse (13402445), we get a palindrome (67822876).
The spelling of 54420431 in words is "fifty-four million, four hundred twenty thousand, four hundred thirty-one".
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