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228284222 = 2557204923
BaseRepresentation
bin11011001101101…
…01011100111110
3120220120001002012
431212311130332
5431420043342
634352531222
75441245445
oct1546653476
9526501065
10228284222
11107951351
1264550b12
13383ab32a
1422465d5c
1515094b82
hexd9b573e

228284222 has 8 divisors (see below), whose sum is σ = 343042776. Its totient is φ = 113936632.

The previous prime is 228284219. The next prime is 228284227. The reversal of 228284222 is 222482822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2282842222 = 104227372028290568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228284227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101348 + ... + 103575.

It is an arithmetic number, because the mean of its divisors is an integer number (42880347).

Almost surely, 2228284222 is an apocalyptic number.

228284222 is a deficient number, since it is larger than the sum of its proper divisors (114758554).

228284222 is a wasteful number, since it uses less digits than its factorization.

228284222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205482.

The product of its digits is 16384, while the sum is 32.

The square root of 228284222 is about 15109.0774701833. The cubic root of 228284222 is about 611.1652205997.

The spelling of 228284222 in words is "two hundred twenty-eight million, two hundred eighty-four thousand, two hundred twenty-two".

Divisors: 1 2 557 1114 204923 409846 114142111 228284222