Base | Representation |
---|---|
bin | 1011110111011… |
… | …1011010110101 |
3 | 10110122200122022 |
4 | 2331313122311 |
5 | 100220202323 |
6 | 4534442525 |
7 | 1143025331 |
oct | 275673265 |
9 | 113580568 |
10 | 49772213 |
11 | 26105667 |
12 | 14803445 |
13 | a40881a |
14 | 68787c1 |
15 | 45824c8 |
hex | 2f776b5 |
49772213 has 4 divisors (see below), whose sum is σ = 50077728. Its totient is φ = 49466700.
The previous prime is 49772197. The next prime is 49772221. The reversal of 49772213 is 31227794.
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 a cyclic number.
It is not a de Polignac number, because 49772213 - 24 = 49772197 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (49775213) 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, 152513 + ... + 152838.
It is an arithmetic number, because the mean of its divisors is an integer number (12519432).
Almost surely, 249772213 is an apocalyptic number.
It is an amenable number.
49772213 is a deficient number, since it is larger than the sum of its proper divisors (305515).
49772213 is a wasteful number, since it uses less digits than its factorization.
49772213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 305514.
The product of its digits is 21168, while the sum is 35.
The square root of 49772213 is about 7054.9424519269. The cubic root of 49772213 is about 367.8428484829.
The spelling of 49772213 in words is "forty-nine million, seven hundred seventy-two thousand, two hundred thirteen".
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