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228280934 = 27192337313
BaseRepresentation
bin11011001101101…
…00101001100110
3120220112212120102
431212310221212
5431414442214
634352504102
75441233040
oct1546645146
9526485512
10228280934
11107949932
126454b032
13383a999b
1422464a90
1515093bde
hexd9b4a66

228280934 has 32 divisors (see below), whose sum is σ = 429857280. Its totient is φ = 88653312.

The previous prime is 228280909. The next prime is 228281041. The reversal of 228280934 is 439082822.

It is a super-2 number, since 2×2282809342 = 104224369655824712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12539 + ... + 24774.

It is an arithmetic number, because the mean of its divisors is an integer number (13433040).

Almost surely, 2228280934 is an apocalyptic number.

228280934 is a deficient number, since it is larger than the sum of its proper divisors (201576346).

228280934 is a wasteful number, since it uses less digits than its factorization.

228280934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37364.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 228280934 is about 15108.9686610304. The cubic root of 228280934 is about 611.1622863615.

The spelling of 228280934 in words is "two hundred twenty-eight million, two hundred eighty thousand, nine hundred thirty-four".

Divisors: 1 2 7 14 19 23 38 46 133 161 266 322 437 874 3059 6118 37313 74626 261191 522382 708947 858199 1417894 1716398 4962629 6007393 9925258 12014786 16305781 32611562 114140467 228280934