Search a number
-
+
228734770 = 25112238219
BaseRepresentation
bin11011010001000…
…11011100110010
3120221101221010011
431220203130302
5432024003040
634410325134
75445133135
oct1550433462
9527357104
10228734770
11108129900
12647297aa
1338508424
142254221c
15151333ea
hexda23732

228734770 has 48 divisors (see below), whose sum is σ = 472288320. Its totient is φ = 79550240.

The previous prime is 228734767. The next prime is 228734797. The reversal of 228734770 is 77437822.

228734770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23721 + ... + 31939.

It is an arithmetic number, because the mean of its divisors is an integer number (9839340).

Almost surely, 2228734770 is an apocalyptic number.

228734770 is an abundant number, since it is smaller than the sum of its proper divisors (243553550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228734770 is a wasteful number, since it uses less digits than its factorization.

228734770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8271 (or 8260 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 228734770 is about 15123.9799656043. The cubic root of 228734770 is about 611.5670271891.

The spelling of 228734770 in words is "two hundred twenty-eight million, seven hundred thirty-four thousand, seven hundred seventy".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 121 230 242 253 506 605 1210 1265 2530 2783 5566 8219 13915 16438 27830 41095 82190 90409 180818 189037 378074 452045 904090 945185 994499 1890370 1988998 2079407 4158814 4972495 9944990 10397035 20794070 22873477 45746954 114367385 228734770