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228526230 = 23552114621
BaseRepresentation
bin11011001111100…
…00100010010110
3120221000100001110
431213300202112
5432000314410
634402035450
75443304142
oct1547604226
9527010043
10228526230
11107aa7159
1264648b86
133846452a
14224ca222
15150e1720
hexd9f0896

228526230 has 32 divisors (see below), whose sum is σ = 549553248. Its totient is φ = 60819200.

The previous prime is 228526187. The next prime is 228526231. The reversal of 228526230 is 32625822.

228526230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228526231) 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, 8320 + ... + 22940.

It is an arithmetic number, because the mean of its divisors is an integer number (17173539).

Almost surely, 2228526230 is an apocalyptic number.

228526230 is an abundant number, since it is smaller than the sum of its proper divisors (321027018).

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

228526230 is a wasteful number, since it uses less digits than its factorization.

228526230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15152.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 228526230 is about 15117.0840442196. The cubic root of 228526230 is about 611.3811132210.

The spelling of 228526230 in words is "two hundred twenty-eight million, five hundred twenty-six thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 521 1042 1563 2605 3126 5210 7815 14621 15630 29242 43863 73105 87726 146210 219315 438630 7617541 15235082 22852623 38087705 45705246 76175410 114263115 228526230