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228294612 = 22357132989
BaseRepresentation
bin11011001101101…
…11111111010100
3120220120120100000
431212313333110
5431420411422
634353051300
75441320650
oct1546677724
9526516300
10228294612
11107959137
1264556b30
13383b2c90
1422469a60
1515097cac
hexd9b7fd4

228294612 has 288 divisors, whose sum is σ = 770515200. Its totient is φ = 57480192.

The previous prime is 228294587. The next prime is 228294623. The reversal of 228294612 is 216492822.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2565064 + ... + 2565152.

It is an arithmetic number, because the mean of its divisors is an integer number (2675400).

Almost surely, 2228294612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228294612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385257600).

228294612 is an abundant number, since it is smaller than the sum of its proper divisors (542220588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228294612 is a wasteful number, since it uses less digits than its factorization.

228294612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 143 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 228294612 is about 15109.4212993086. The cubic root of 228294612 is about 611.1744925361.

The spelling of 228294612 in words is "two hundred twenty-eight million, two hundred ninety-four thousand, six hundred twelve".