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22512240133 = 151149087683
BaseRepresentation
bin10100111101110101…
…011000011000000101
32011002220202021211121
4110331311120120011
5332101113141013
614201511233541
71424605612105
oct247565303005
964086667747
1022512240133
119602633239
1244433788b1
13217a001466
141137c01205
158bb5b358d
hex53dd58605

22512240133 has 4 divisors (see below), whose sum is σ = 22661327968. Its totient is φ = 22363152300.

The previous prime is 22512240119. The next prime is 22512240143. The reversal of 22512240133 is 33104221522.

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: 33104221522 = 216552110761.

It is a cyclic number.

It is not a de Polignac number, because 22512240133 - 233 = 13922305541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22512240098 and 22512240107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22512240143) 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, 74543691 + ... + 74543992.

It is an arithmetic number, because the mean of its divisors is an integer number (5665331992).

Almost surely, 222512240133 is an apocalyptic number.

It is an amenable number.

22512240133 is a deficient number, since it is larger than the sum of its proper divisors (149087835).

22512240133 is a wasteful number, since it uses less digits than its factorization.

22512240133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149087834.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 22512240133 its reverse (33104221522), we get a palindrome (55616461655).

The spelling of 22512240133 in words is "twenty-two billion, five hundred twelve million, two hundred forty thousand, one hundred thirty-three".

Divisors: 1 151 149087683 22512240133