Base | Representation |
---|---|
bin | 1100111010010… |
… | …1011010000001 |
3 | 10202220100112100 |
4 | 3032211122001 |
5 | 102330424011 |
6 | 5212421013 |
7 | 1225210644 |
oct | 316453201 |
9 | 122810470 |
10 | 54154881 |
11 | 28629400 |
12 | 16177769 |
13 | b2b1611 |
14 | 7299a5b |
15 | 4b4ad56 |
hex | 33a5681 |
54154881 has 27 divisors (see below), whose sum is σ = 86368737. Its totient is φ = 32673960.
The previous prime is 54154879. The next prime is 54154907. The reversal of 54154881 is 18845145.
The square root of 54154881 is 7359.
It is a perfect power (a square), and thus also a powerful number.
It is not a de Polignac number, because 54154881 - 21 = 54154879 is a prime.
It is a super-2 number, since 2×541548812 = 5865502272248322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (54154801) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 242736 + ... + 242958.
Almost surely, 254154881 is an apocalyptic number.
54154881 is the 7359-th square number.
54154881 is the 3680-th centered octagonal number.
It is an amenable number.
54154881 is a deficient number, since it is larger than the sum of its proper divisors (32213856).
54154881 is a wasteful number, since it uses less digits than its factorization.
54154881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 474 (or 237 counting only the distinct ones).
The product of its digits is 25600, while the sum is 36.
The cubic root of 54154881 is about 378.3373363874.
Multiplying 54154881 by its sum of digits (36), we get a square (1949575716 = 441542).
Multiplying 54154881 by its product of digits (25600), we get a square (1386364953600 = 11774402).
It can be divided in two parts, 5415 and 4881, that added together give a triangular number (10296 = T143).
The spelling of 54154881 in words is "fifty-four million, one hundred fifty-four thousand, eight hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •