Base | Representation |
---|---|
bin | 11011001100011… |
… | …11110110011011 |
3 | 120220021012210210 |
4 | 31212033312123 |
5 | 431400131303 |
6 | 34345342203 |
7 | 5440034430 |
oct | 1546176633 |
9 | 526235723 |
10 | 228130203 |
11 | 107856664 |
12 | 64497963 |
13 | 383561b2 |
14 | 22425b87 |
15 | 15064203 |
hex | d98fd9b |
228130203 has 8 divisors (see below), whose sum is σ = 347627008. Its totient is φ = 130360104.
The previous prime is 228130193. The next prime is 228130213. The reversal of 228130203 is 302031822.
It is an interprime number because it is at equal distance from previous prime (228130193) and next prime (228130213).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 228130203 - 24 = 228130187 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10863343 = 228130203 / (2 + 2 + 8 + 1 + 3 + 0 + 2 + 0 + 3).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 228130203.
It is not an unprimeable number, because it can be changed into a prime (228130213) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5431651 + ... + 5431692.
It is an arithmetic number, because the mean of its divisors is an integer number (43453376).
Almost surely, 2228130203 is an apocalyptic number.
228130203 is a deficient number, since it is larger than the sum of its proper divisors (119496805).
228130203 is a wasteful number, since it uses less digits than its factorization.
228130203 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10863353.
The product of its (nonzero) digits is 576, while the sum is 21.
The square root of 228130203 is about 15103.9797073487. The cubic root of 228130203 is about 611.0277425140.
The spelling of 228130203 in words is "two hundred twenty-eight million, one hundred thirty thousand, two hundred three".
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