Base | Representation |
---|---|
bin | 1011101010001… |
… | …0011111110001 |
3 | 10102000101022010 |
4 | 2322202133301 |
5 | 100004300311 |
6 | 4504033133 |
7 | 1132433556 |
oct | 272423761 |
9 | 112011263 |
10 | 48900081 |
11 | 2566a39a |
12 | 144627a9 |
13 | a191879 |
14 | 66cca2d |
15 | 445dda6 |
hex | 2ea27f1 |
48900081 has 4 divisors (see below), whose sum is σ = 65200112. Its totient is φ = 32600052.
The previous prime is 48900077. The next prime is 48900083. The reversal of 48900081 is 18000984.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 48900081 - 22 = 48900077 is a prime.
It is a super-2 number, since 2×489000812 = 4782435843613122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (48900083) 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, 8150011 + ... + 8150016.
It is an arithmetic number, because the mean of its divisors is an integer number (16300028).
Almost surely, 248900081 is an apocalyptic number.
It is an amenable number.
48900081 is a deficient number, since it is larger than the sum of its proper divisors (16300031).
48900081 is a wasteful number, since it uses less digits than its factorization.
48900081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16300030.
The product of its (nonzero) digits is 2304, while the sum is 30.
The square root of 48900081 is about 6992.8592864436. The cubic root of 48900081 is about 365.6816710170.
The spelling of 48900081 in words is "forty-eight million, nine hundred thousand, eighty-one".
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