Base | Representation |
---|---|
bin | 1011011111010… |
… | …0111010100010 |
3 | 10100200021000010 |
4 | 2313310322202 |
5 | 44314022330 |
6 | 4440505350 |
7 | 1123412655 |
oct | 267647242 |
9 | 110607003 |
10 | 48189090 |
11 | 252241a4 |
12 | 1417b256 |
13 | 9ca3071 |
14 | 658589c |
15 | 436d3b0 |
hex | 2df4ea2 |
48189090 has 32 divisors (see below), whose sum is σ = 115836480. Its totient is φ = 12830144.
The previous prime is 48189077. The next prime is 48189091. The reversal of 48189090 is 9098184.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (48189091) 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, 36217 + ... + 37523.
It is an arithmetic number, because the mean of its divisors is an integer number (3619890).
Almost surely, 248189090 is an apocalyptic number.
48189090 is an abundant number, since it is smaller than the sum of its proper divisors (67647390).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
48189090 is a wasteful number, since it uses less digits than its factorization.
48189090 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2546.
The product of its (nonzero) digits is 20736, while the sum is 39.
The square root of 48189090 is about 6941.8362124153. The cubic root of 48189090 is about 363.9007145788.
The spelling of 48189090 in words is "forty-eight million, one hundred eighty-nine thousand, ninety".
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