Base | Representation |
---|---|
bin | 1011011110110… |
… | …0001001011101 |
3 | 10100121102202011 |
4 | 2313230021131 |
5 | 44311400211 |
6 | 4440031221 |
7 | 1123203166 |
oct | 267541135 |
9 | 110542664 |
10 | 48153181 |
11 | 251aa21a |
12 | 14162511 |
13 | 9c8c90b |
14 | 657676d |
15 | 4362921 |
hex | 2dec25d |
48153181 has 4 divisors (see below), whose sum is σ = 48282652. Its totient is φ = 48023712.
The previous prime is 48153167. The next prime is 48153187. The reversal of 48153181 is 18135184.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 20169081 + 27984100 = 4491^2 + 5290^2 .
It is a cyclic number.
It is not a de Polignac number, because 48153181 - 211 = 48151133 is a prime.
It is a super-2 number, since 2×481531812 = 4637457680837522, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (48153187) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64176 + ... + 64921.
It is an arithmetic number, because the mean of its divisors is an integer number (12070663).
Almost surely, 248153181 is an apocalyptic number.
It is an amenable number.
48153181 is a deficient number, since it is larger than the sum of its proper divisors (129471).
48153181 is a wasteful number, since it uses less digits than its factorization.
48153181 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 129470.
The product of its digits is 3840, while the sum is 31.
The square root of 48153181 is about 6939.2493109846. The cubic root of 48153181 is about 363.8103029808.
The spelling of 48153181 in words is "forty-eight million, one hundred fifty-three thousand, one hundred eighty-one".
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