Search a number
-
+
228112203 = 31152313217
BaseRepresentation
bin11011001100010…
…11011101001011
3120220020022010010
431212023131023
5431344042303
634345123003
75436631104
oct1546133513
9526208103
10228112203
11107844090
1264489463
133834ac47
142241d3ab
151505dc03
hexd98b74b

228112203 has 16 divisors (see below), whose sum is σ = 332459136. Its totient is φ = 137975040.

The previous prime is 228112201. The next prime is 228112211. The reversal of 228112203 is 302211822.

It is a happy number.

It is not a de Polignac number, because 228112203 - 21 = 228112201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228112203.

It is not an unprimeable number, because it can be changed into a prime (228112201) 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, 10651 + ... + 23867.

It is an arithmetic number, because the mean of its divisors is an integer number (20778696).

Almost surely, 2228112203 is an apocalyptic number.

228112203 is a deficient number, since it is larger than the sum of its proper divisors (104346933).

228112203 is a wasteful number, since it uses less digits than its factorization.

228112203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13754.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 228112203 is about 15103.3838261497. The cubic root of 228112203 is about 611.0116715912.

The spelling of 228112203 in words is "two hundred twenty-eight million, one hundred twelve thousand, two hundred three".

Divisors: 1 3 11 33 523 1569 5753 13217 17259 39651 145387 436161 6912491 20737473 76037401 228112203