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22100141 = 73157163
BaseRepresentation
bin101010001001…
…1100010101101
31112120210200202
41110103202231
521124201031
62105403245
7355563620
oct124234255
945523622
1022100141
1111525188
127499525
13476a30b
142d13db7
151e182cb
hex15138ad

22100141 has 4 divisors (see below), whose sum is σ = 25257312. Its totient is φ = 18942972.

The previous prime is 22100131. The next prime is 22100147. The reversal of 22100141 is 14100122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14100122 = 27050061.

It is a cyclic number.

It is not a de Polignac number, because 22100141 - 218 = 21837997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1578575 + ... + 1578588.

It is an arithmetic number, because the mean of its divisors is an integer number (6314328).

Almost surely, 222100141 is an apocalyptic number.

It is an amenable number.

22100141 is a deficient number, since it is larger than the sum of its proper divisors (3157171).

22100141 is an equidigital number, since it uses as much as digits as its factorization.

22100141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157170.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 22100141 is about 4701.0787059993. The cubic root of 22100141 is about 280.6284396481.

Adding to 22100141 its reverse (14100122), we get a palindrome (36200263).

The spelling of 22100141 in words is "twenty-two million, one hundred thousand, one hundred forty-one".

Divisors: 1 7 3157163 22100141