Base | Representation |
---|---|
bin | 11011001100100… |
… | …10110100101111 |
3 | 120220021211111220 |
4 | 31212102310233 |
5 | 431401024013 |
6 | 34345514423 |
7 | 5440115100 |
oct | 1546226457 |
9 | 526254456 |
10 | 228142383 |
11 | 107864827 |
12 | 644a2a13 |
13 | 3835b8c1 |
14 | 2242a3a7 |
15 | 15067b23 |
hex | d992d2f |
228142383 has 24 divisors (see below), whose sum is σ = 358853760. Its totient is φ = 128525040.
The previous prime is 228142337. The next prime is 228142403. The reversal of 228142383 is 383241822.
It is not a de Polignac number, because 228142383 - 26 = 228142319 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (228141383) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493 + ... + 21366.
It is an arithmetic number, because the mean of its divisors is an integer number (14952240).
Almost surely, 2228142383 is an apocalyptic number.
228142383 is a deficient number, since it is larger than the sum of its proper divisors (130711377).
228142383 is a wasteful number, since it uses less digits than its factorization.
228142383 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21947 (or 21940 counting only the distinct ones).
The product of its digits is 18432, while the sum is 33.
The square root of 228142383 is about 15104.3829069578. The cubic root of 228142383 is about 611.0386166922.
The spelling of 228142383 in words is "two hundred twenty-eight million, one hundred forty-two thousand, three hundred eighty-three".
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