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228863214 = 23217747919
BaseRepresentation
bin11011010010000…
…10110011101110
3120221122110022100
431221002303232
5432042110324
634413155530
75446206456
oct1551026356
9527573270
10228863214
11108207358
126478bba6
1338551a28
1422576d66
151515b4c9
hexda42cee

228863214 has 24 divisors (see below), whose sum is σ = 525039840. Its totient is φ = 71800128.

The previous prime is 228863213. The next prime is 228863251. The reversal of 228863214 is 412368822.

228863214 is a `hidden beast` number, since 2 + 2 + 8 + 8 + 632 + 14 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228863213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 373654 + ... + 374265.

It is an arithmetic number, because the mean of its divisors is an integer number (21876660).

Almost surely, 2228863214 is an apocalyptic number.

228863214 is an abundant number, since it is smaller than the sum of its proper divisors (296176626).

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

228863214 is a wasteful number, since it uses less digits than its factorization.

228863214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747944 (or 747941 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 228863214 is about 15128.2257386648. The cubic root of 228863214 is about 611.6814791319.

The spelling of 228863214 in words is "two hundred twenty-eight million, eight hundred sixty-three thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 747919 1495838 2243757 4487514 6731271 12714623 13462542 25429246 38143869 76287738 114431607 228863214