Base | Representation |
---|---|
bin | 1100111110110… |
… | …0010001010111 |
3 | 10210110002200210 |
4 | 3033230101113 |
5 | 102414221033 |
6 | 5222540503 |
7 | 1230530124 |
oct | 317542127 |
9 | 123402623 |
10 | 54445143 |
11 | 28807495 |
12 | 16297733 |
13 | b38377c |
14 | 733374b |
15 | 4ba6d63 |
hex | 33ec457 |
54445143 has 16 divisors (see below), whose sum is σ = 73910016. Its totient is φ = 35642880.
The previous prime is 54445133. The next prime is 54445147. The reversal of 54445143 is 34154445.
It is not a de Polignac number, because 54445143 - 225 = 20890711 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 54445143.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54445147) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94071 + ... + 94647.
It is an arithmetic number, because the mean of its divisors is an integer number (4619376).
Almost surely, 254445143 is an apocalyptic number.
54445143 is a deficient number, since it is larger than the sum of its proper divisors (19464873).
54445143 is a wasteful number, since it uses less digits than its factorization.
54445143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1094.
The product of its digits is 19200, while the sum is 30.
The square root of 54445143 is about 7378.6952098593. The cubic root of 54445143 is about 379.0120760187.
Adding to 54445143 its reverse (34154445), we get a palindrome (88599588).
The spelling of 54445143 in words is "fifty-four million, four hundred forty-five thousand, one hundred forty-three".
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