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228131314 = 2181630197
BaseRepresentation
bin11011001100100…
…00000111110010
3120220021021022221
431212100013302
5431400200224
634345351254
75440040605
oct1546200762
9526237287
10228131314
11107857484
126449852a
1338356858
142242633c
15150646e4
hexd9901f2

228131314 has 8 divisors (see below), whose sum is σ = 344088108. Its totient is φ = 113435280.

The previous prime is 228131291. The next prime is 228131329. The reversal of 228131314 is 413131822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 215649225 + 12482089 = 14685^2 + 3533^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314737 + ... + 315460.

Almost surely, 2228131314 is an apocalyptic number.

228131314 is a deficient number, since it is larger than the sum of its proper divisors (115956794).

228131314 is a wasteful number, since it uses less digits than its factorization.

228131314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630380.

The product of its digits is 1152, while the sum is 25.

The square root of 228131314 is about 15104.0164856902. The cubic root of 228131314 is about 611.0287344194.

The spelling of 228131314 in words is "two hundred twenty-eight million, one hundred thirty-one thousand, three hundred fourteen".

Divisors: 1 2 181 362 630197 1260394 114065657 228131314