Base | Representation |
---|---|
bin | 11011000111000… |
… | …11001010100001 |
3 | 120211221021112200 |
4 | 31203203022201 |
5 | 431210013011 |
6 | 34322243413 |
7 | 5431030320 |
oct | 1543431241 |
9 | 524837480 |
10 | 227422881 |
11 | 1074131a4 |
12 | 641b6569 |
13 | 3816926a |
14 | 222c00b7 |
15 | 14e74856 |
hex | d8e32a1 |
227422881 has 12 divisors (see below), whose sum is σ = 375428352. Its totient is φ = 129955896.
The previous prime is 227422879. The next prime is 227422883. The reversal of 227422881 is 188224722.
227422881 is a `hidden beast` number, since 227 + 422 + 8 + 8 + 1 = 666.
It is an interprime number because it is at equal distance from previous prime (227422879) and next prime (227422883).
It is not a de Polignac number, because 227422881 - 21 = 227422879 is a prime.
It is a super-2 number, since 2×2274228812 = 103442333604680322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (227422883) 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 11 ways as a sum of consecutive naturals, for example, 1804881 + ... + 1805006.
It is an arithmetic number, because the mean of its divisors is an integer number (31285696).
Almost surely, 2227422881 is an apocalyptic number.
227422881 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
227422881 is a deficient number, since it is larger than the sum of its proper divisors (148005471).
227422881 is a wasteful number, since it uses less digits than its factorization.
227422881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3609900 (or 3609897 counting only the distinct ones).
The product of its digits is 28672, while the sum is 36.
The square root of 227422881 is about 15080.5464423541. The cubic root of 227422881 is about 610.3955877112.
The spelling of 227422881 in words is "two hundred twenty-seven million, four hundred twenty-two thousand, eight hundred eighty-one".
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