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22124141 = 131701857
BaseRepresentation
bin101010001100…
…1011001101101
31112122000121122
41110121121231
521130433031
62110110325
7356023604
oct124313155
945560548
1022124141
1111541216
1274ab3a5
134778210
142d1ca3b
151e2047b
hex151966d

22124141 has 4 divisors (see below), whose sum is σ = 23826012. Its totient is φ = 20422272.

The previous prime is 22124131. The next prime is 22124143. The reversal of 22124141 is 14142122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14142122 = 27071061.

It can be written as a sum of positive squares in 2 ways, for example, as 6482116 + 15642025 = 2546^2 + 3955^2 .

It is not a de Polignac number, because 22124141 - 26 = 22124077 is a prime.

It is a super-2 number, since 2×221241412 = 978955229975762, 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 (22124143) 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 3 ways as a sum of consecutive naturals, for example, 850916 + ... + 850941.

It is an arithmetic number, because the mean of its divisors is an integer number (5956503).

Almost surely, 222124141 is an apocalyptic number.

It is an amenable number.

22124141 is a deficient number, since it is larger than the sum of its proper divisors (1701871).

22124141 is a wasteful number, since it uses less digits than its factorization.

22124141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701870.

The product of its digits is 128, while the sum is 17.

The square root of 22124141 is about 4703.6306190006. The cubic root of 22124141 is about 280.7299872053.

Adding to 22124141 its reverse (14142122), we get a palindrome (36266263).

The spelling of 22124141 in words is "twenty-two million, one hundred twenty-four thousand, one hundred forty-one".

Divisors: 1 13 1701857 22124141