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228133574 = 21766110151
BaseRepresentation
bin11011001100100…
…00101011000110
3120220021101102122
431212100223012
5431400233244
634345405542
75440050314
oct1546205306
9526241378
10228133574
11107859149
12644998b2
13383578a6
14224270b4
15150651ee
hexd990ac6

228133574 has 16 divisors (see below), whose sum is σ = 362913696. Its totient is φ = 107184000.

The previous prime is 228133559. The next prime is 228133583. The reversal of 228133574 is 475331822.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 17399 + ... + 27549.

It is an arithmetic number, because the mean of its divisors is an integer number (22682106).

Almost surely, 2228133574 is an apocalyptic number.

228133574 is a deficient number, since it is larger than the sum of its proper divisors (134780122).

228133574 is a wasteful number, since it uses less digits than its factorization.

228133574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10831.

The product of its digits is 40320, while the sum is 35.

The square root of 228133574 is about 15104.0913000419. The cubic root of 228133574 is about 611.0307521467.

The spelling of 228133574 in words is "two hundred twenty-eight million, one hundred thirty-three thousand, five hundred seventy-four".

Divisors: 1 2 17 34 661 1322 10151 11237 20302 22474 172567 345134 6709811 13419622 114066787 228133574