Search a number
-
+
228045844 = 22136017297
BaseRepresentation
bin11011001011110…
…11010000010100
3120220002221002101
431211323100110
5431334431334
634343451444
75436233455
oct1545732024
9526087071
10228045844
111077a9244
1264456b84
1338326990
142240312c
1515049214
hexd97b414

228045844 has 24 divisors (see below), whose sum is σ = 430552808. Its totient is φ = 105062400.

The previous prime is 228045817. The next prime is 228045863. The reversal of 228045844 is 448540822.

228045844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 20340100 + 207705744 = 4510^2 + 14412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27604 + ... + 34900.

Almost surely, 2228045844 is an apocalyptic number.

It is an amenable number.

228045844 is a deficient number, since it is larger than the sum of its proper divisors (202506964).

228045844 is a wasteful number, since it uses less digits than its factorization.

228045844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7915 (or 7913 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 37.

The square root of 228045844 is about 15101.1868407751. The cubic root of 228045844 is about 610.9524170441.

The spelling of 228045844 in words is "two hundred twenty-eight million, forty-five thousand, eight hundred forty-four".

Divisors: 1 2 4 13 26 52 601 1202 2404 7297 7813 14594 15626 29188 31252 94861 189722 379444 4385497 8770994 17541988 57011461 114022922 228045844