Base | Representation |
---|---|
bin | 1011111110111… |
… | …1001111000101 |
3 | 10111120121211220 |
4 | 2333233033011 |
5 | 100331403411 |
6 | 4553150553 |
7 | 1150141206 |
oct | 277571705 |
9 | 114517756 |
10 | 50262981 |
11 | 2641035a |
12 | 149bb459 |
13 | a54b012 |
14 | 69655ad |
15 | 462cb06 |
hex | 2fef3c5 |
50262981 has 16 divisors (see below), whose sum is σ = 70258560. Its totient is φ = 31901760.
The previous prime is 50262977. The next prime is 50262991. The reversal of 50262981 is 18926205.
It is not a de Polignac number, because 50262981 - 22 = 50262977 is a prime.
It is a super-2 number, since 2×502629812 = 5052734518012722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (50262941) 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, 14211 + ... + 17391.
It is an arithmetic number, because the mean of its divisors is an integer number (4391160).
Almost surely, 250262981 is an apocalyptic number.
It is an amenable number.
50262981 is a deficient number, since it is larger than the sum of its proper divisors (19995579).
50262981 is a wasteful number, since it uses less digits than its factorization.
50262981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3436.
The product of its (nonzero) digits is 8640, while the sum is 33.
The square root of 50262981 is about 7089.6389893985. The cubic root of 50262981 is about 369.0479076465.
The spelling of 50262981 in words is "fifty million, two hundred sixty-two thousand, nine hundred eighty-one".
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