Base | Representation |
---|---|
bin | 1011101001110… |
… | …1011010110001 |
3 | 10101222022202202 |
4 | 2322131122301 |
5 | 100003114111 |
6 | 4503352545 |
7 | 1132316123 |
oct | 272353261 |
9 | 111868682 |
10 | 48879281 |
11 | 25655800 |
12 | 14452755 |
13 | a185269 |
14 | 66c5213 |
15 | 4457b3b |
hex | 2e9d6b1 |
48879281 has 24 divisors (see below), whose sum is σ = 56485632. Its totient is φ = 42213600.
The previous prime is 48879277. The next prime is 48879287. The reversal of 48879281 is 18297884.
It is not a de Polignac number, because 48879281 - 22 = 48879277 is a prime.
It is a super-2 number, since 2×488792812 = 4778368222153922, 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 (48879287) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 311255 + ... + 311411.
It is an arithmetic number, because the mean of its divisors is an integer number (2353568).
Almost surely, 248879281 is an apocalyptic number.
It is an amenable number.
48879281 is a deficient number, since it is larger than the sum of its proper divisors (7606351).
48879281 is a wasteful number, since it uses less digits than its factorization.
48879281 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 293 (or 282 counting only the distinct ones).
The product of its digits is 258048, while the sum is 47.
The square root of 48879281 is about 6991.3718968454. The cubic root of 48879281 is about 365.6298152238.
The spelling of 48879281 in words is "forty-eight million, eight hundred seventy-nine thousand, two hundred eighty-one".
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