Base | Representation |
---|---|
bin | 11010011011001… |
… | …11101111001010 |
3 | 120110010020011112 |
4 | 31031213233022 |
5 | 423222040232 |
6 | 33555130322 |
7 | 5331126113 |
oct | 1515475712 |
9 | 513106145 |
10 | 221674442 |
11 | 104147320 |
12 | 622a39a2 |
13 | 36c05912 |
14 | 2162520a |
15 | 146db4b2 |
hex | d367bca |
221674442 has 16 divisors (see below), whose sum is σ = 362994912. Its totient is φ = 100690320.
The previous prime is 221674433. The next prime is 221674487. The reversal of 221674442 is 244476122.
It is a super-2 number, since 2×2216744422 = 98279116472022728, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 221674399 and 221674408.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40853 + ... + 45959.
It is an arithmetic number, because the mean of its divisors is an integer number (22687182).
Almost surely, 2221674442 is an apocalyptic number.
221674442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
221674442 is a deficient number, since it is larger than the sum of its proper divisors (141320470).
221674442 is a wasteful number, since it uses less digits than its factorization.
221674442 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7093.
The product of its digits is 21504, while the sum is 32.
The square root of 221674442 is about 14888.7354063399. The cubic root of 221674442 is about 605.2087634171.
The spelling of 221674442 in words is "two hundred twenty-one million, six hundred seventy-four thousand, four hundred forty-two".
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