Base | Representation |
---|---|
bin | 11011001010111… |
… | …10100001011101 |
3 | 120212212221122121 |
4 | 31211132201131 |
5 | 431322200112 |
6 | 34341142541 |
7 | 5435233402 |
oct | 1545364135 |
9 | 525787577 |
10 | 227928157 |
11 | 107728886 |
12 | 643baa51 |
13 | 382b5242 |
14 | 223b22a9 |
15 | 15024407 |
hex | d95e85d |
227928157 has 2 divisors, whose sum is σ = 227928158. Its totient is φ = 227928156.
The previous prime is 227928149. The next prime is 227928179. The reversal of 227928157 is 751829722.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 165533956 + 62394201 = 12866^2 + 7899^2 .
It is a cyclic number.
It is not a de Polignac number, because 227928157 - 23 = 227928149 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (227928187) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113964078 + 113964079.
It is an arithmetic number, because the mean of its divisors is an integer number (113964079).
Almost surely, 2227928157 is an apocalyptic number.
It is an amenable number.
227928157 is a deficient number, since it is larger than the sum of its proper divisors (1).
227928157 is an equidigital number, since it uses as much as digits as its factorization.
227928157 is an evil number, because the sum of its binary digits is even.
The product of its digits is 141120, while the sum is 43.
The square root of 227928157 is about 15097.2897236557. The cubic root of 227928157 is about 610.8473014410.
The spelling of 227928157 in words is "two hundred twenty-seven million, nine hundred twenty-eight thousand, one hundred fifty-seven".
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