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228144722 = 21323893673
BaseRepresentation
bin11011001100100…
…11011001010010
3120220021221201112
431212103121102
5431401112342
634345533322
75440124651
oct1546233122
9526257645
10228144722
11107866563
12644a4242
133835c9a0
142242b198
1515068682
hexd993652

228144722 has 16 divisors (see below), whose sum is σ = 368796120. Its totient is φ = 105224832.

The previous prime is 228144703. The next prime is 228144727. The reversal of 228144722 is 227441822.

228144722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 67387681 + 160757041 = 8209^2 + 12679^2 .

It is not an unprimeable number, because it can be changed into a prime (228144727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60278 + ... + 63950.

Almost surely, 2228144722 is an apocalyptic number.

228144722 is a deficient number, since it is larger than the sum of its proper divisors (140651398).

228144722 is a wasteful number, since it uses less digits than its factorization.

228144722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6077.

The product of its digits is 14336, while the sum is 32.

The square root of 228144722 is about 15104.4603346164. The cubic root of 228144722 is about 611.0407048830.

The spelling of 228144722 in words is "two hundred twenty-eight million, one hundred forty-four thousand, seven hundred twenty-two".

Divisors: 1 2 13 26 2389 3673 4778 7346 31057 47749 62114 95498 8774797 17549594 114072361 228144722