Base | Representation |
---|---|
bin | 1011110111001… |
… | …0011111010010 |
3 | 10110121122221100 |
4 | 2331302133102 |
5 | 100214031033 |
6 | 4534205230 |
7 | 1142612421 |
oct | 275623722 |
9 | 113548840 |
10 | 49752018 |
11 | 260a1478 |
12 | 147b3816 |
13 | a3cc584 |
14 | 68712b8 |
15 | 457b513 |
hex | 2f727d2 |
49752018 has 12 divisors (see below), whose sum is σ = 107796078. Its totient is φ = 16584000.
The previous prime is 49752011. The next prime is 49752029. The reversal of 49752018 is 81025794.
It can be written as a sum of positive squares in only one way, i.e., 49660209 + 91809 = 7047^2 + 303^2 .
It is not an unprimeable number, because it can be changed into a prime (49752011) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1381983 + ... + 1382018.
Almost surely, 249752018 is an apocalyptic number.
49752018 is an abundant number, since it is smaller than the sum of its proper divisors (58044060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
49752018 is a wasteful number, since it uses less digits than its factorization.
49752018 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2764009 (or 2764006 counting only the distinct ones).
The product of its (nonzero) digits is 20160, while the sum is 36.
The square root of 49752018 is about 7053.5110406095. The cubic root of 49752018 is about 367.7930911932.
The spelling of 49752018 in words is "forty-nine million, seven hundred fifty-two thousand, eighteen".
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