Base | Representation |
---|---|
bin | 11010011110110… |
… | …01011111011101 |
3 | 120110222220022112 |
4 | 31033121133131 |
5 | 423331443011 |
6 | 34013123405 |
7 | 5335106411 |
oct | 1517313735 |
9 | 513886275 |
10 | 222140381 |
11 | 1044353a1 |
12 | 62489565 |
13 | 37039a18 |
14 | 21706d41 |
15 | 1477e58b |
hex | d3d97dd |
222140381 has 8 divisors (see below), whose sum is σ = 233969280. Its totient is φ = 210325248.
The previous prime is 222140363. The next prime is 222140423. The reversal of 222140381 is 183041222.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 222140381 - 222 = 217946077 is a prime.
It is a super-2 number, since 2×2221403812 = 98692697741650322, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (222140311) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 57740 + ... + 61466.
It is an arithmetic number, because the mean of its divisors is an integer number (29246160).
Almost surely, 2222140381 is an apocalyptic number.
It is an amenable number.
222140381 is a deficient number, since it is larger than the sum of its proper divisors (11828899).
222140381 is a wasteful number, since it uses less digits than its factorization.
222140381 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6883.
The product of its (nonzero) digits is 768, while the sum is 23.
The square root of 222140381 is about 14904.3745591689. The cubic root of 222140381 is about 605.6324974621.
The spelling of 222140381 in words is "two hundred twenty-two million, one hundred forty thousand, three hundred eighty-one".
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