| Base | Representation |
|---|---|
| bin | 10000010110000… |
| … | …011110011110100 |
| 3 | 201002222201200200 |
| 4 | 100112003303310 |
| 5 | 1030144440403 |
| 6 | 43113240500 |
| 7 | 6536550024 |
| oct | 2026036364 |
| 9 | 632881620 |
| 10 | 274218228 |
| 11 | 130875239 |
| 12 | 77a03130 |
| 13 | 44a71b0b |
| 14 | 285c1a84 |
| 15 | 19119ca3 |
| hex | 10583cf4 |
274218228 has 54 divisors (see below), whose sum is σ = 736363446. Its totient is φ = 86025984.
The previous prime is 274218223. The next prime is 274218247. The reversal of 274218228 is 822812472.
274218228 is a `hidden beast` number, since 2 + 7 + 421 + 8 + 228 = 666.
It can be written as a sum of positive squares in 3 ways, for example, as 94711824 + 179506404 = 9732^2 + 13398^2 .
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 274218192 and 274218201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (274218221) by changing a digit.
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 17 ways as a sum of consecutive naturals, for example, 2775 + ... + 23582.
Almost surely, 2274218228 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 274218228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368181723).
274218228 is an abundant number, since it is smaller than the sum of its proper divisors (462145218).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
274218228 is a wasteful number, since it uses less digits than its factorization.
274218228 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26401 (or 26379 counting only the distinct ones).
The product of its digits is 28672, while the sum is 36.
The square root of 274218228 is about 16559.5358630609. The cubic root of 274218228 is about 649.6789167644.
The spelling of 274218228 in words is "two hundred seventy-four million, two hundred eighteen thousand, two hundred twenty-eight".
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