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228251130 = 2357608371
BaseRepresentation
bin11011001101011…
…01010111111010
3120220111100200120
431212231113322
5431413014010
634352114110
75441050122
oct1546552772
9526440616
10228251130
111079294a8
1264535936
1338399253
1422457c82
1515089e70
hexd9ad5fa

228251130 has 16 divisors (see below), whose sum is σ = 547802784. Its totient is φ = 60866960.

The previous prime is 228251119. The next prime is 228251137. The reversal of 228251130 is 31152822.

It is a self number, because there is not a number n which added to its sum of digits gives 228251130.

It is not an unprimeable number, because it can be changed into a prime (228251137) 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, 3804156 + ... + 3804215.

It is an arithmetic number, because the mean of its divisors is an integer number (34237674).

Almost surely, 2228251130 is an apocalyptic number.

228251130 is an abundant number, since it is smaller than the sum of its proper divisors (319551654).

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

228251130 is a wasteful number, since it uses less digits than its factorization.

228251130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7608381.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 228251130 is about 15107.9823272335. The cubic root of 228251130 is about 611.1356877413.

The spelling of 228251130 in words is "two hundred twenty-eight million, two hundred fifty-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 7608371 15216742 22825113 38041855 45650226 76083710 114125565 228251130