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22073142541 = 44474963603
BaseRepresentation
bin10100100011101010…
…010110110100001101
32002222022111211011211
4110203222112310031
5330201211030131
614050144014421
71410664421152
oct244352266415
962868454154
1022073142541
1193a779376a
124340301411
13210a050cb8
1410d5780229
15892c7a5b1
hex523a96d0d

22073142541 has 4 divisors (see below), whose sum is σ = 22078110592. Its totient is φ = 22068174492.

The previous prime is 22073142529. The next prime is 22073142551. The reversal of 22073142541 is 14524137022.

It is a happy number.

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: 14524137022 = 27262068511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22073142541 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 (22073142551) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2477355 + ... + 2486248.

It is an arithmetic number, because the mean of its divisors is an integer number (5519527648).

Almost surely, 222073142541 is an apocalyptic number.

It is an amenable number.

22073142541 is a deficient number, since it is larger than the sum of its proper divisors (4968051).

22073142541 is an equidigital number, since it uses as much as digits as its factorization.

22073142541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4968050.

The product of its (nonzero) digits is 13440, while the sum is 31.

Adding to 22073142541 its reverse (14524137022), we get a palindrome (36597279563).

The spelling of 22073142541 in words is "twenty-two billion, seventy-three million, one hundred forty-two thousand, five hundred forty-one".

Divisors: 1 4447 4963603 22073142541