Base | Representation |
---|---|
bin | 1011111000101… |
… | …1111111100001 |
3 | 10110210222020100 |
4 | 2332023333201 |
5 | 100230401411 |
6 | 4540333013 |
7 | 1143526113 |
oct | 276137741 |
9 | 113728210 |
10 | 49856481 |
11 | 26162a04 |
12 | 14844169 |
13 | a437c9c |
14 | 689b3b3 |
15 | 459c456 |
hex | 2f8bfe1 |
49856481 has 12 divisors (see below), whose sum is σ = 74498580. Its totient is φ = 32091360.
The previous prime is 49856447. The next prime is 49856483. The reversal of 49856481 is 18465894.
49856481 is a `hidden beast` number, since 4 + 9 + 8 + 564 + 81 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 20793600 + 29062881 = 4560^2 + 5391^2 .
It is not a de Polignac number, because 49856481 - 211 = 49854433 is a prime.
It is a super-2 number, since 2×498564812 = 4971337395406722, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (49856483) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95250 + ... + 95771.
It is an arithmetic number, because the mean of its divisors is an integer number (6208215).
Almost surely, 249856481 is an apocalyptic number.
It is an amenable number.
49856481 is a deficient number, since it is larger than the sum of its proper divisors (24642099).
49856481 is a wasteful number, since it uses less digits than its factorization.
49856481 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 191056 (or 191053 counting only the distinct ones).
The product of its digits is 276480, while the sum is 45.
The square root of 49856481 is about 7060.9121931943. The cubic root of 49856481 is about 368.0503263915.
The spelling of 49856481 in words is "forty-nine million, eight hundred fifty-six thousand, four hundred eighty-one".
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