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22144351153 = 33166901363
BaseRepresentation
bin10100100111111001…
…111111101110110001
32010011021111121000211
4110213321333232301
5330322423214103
614101210144121
71412520610351
oct244771775661
963137447024
1022144351153
1194339aa861
124360122041
13211ba23982
141100dd8b61
1589914436d
hex527e7fbb1

22144351153 has 4 divisors (see below), whose sum is σ = 22211252848. Its totient is φ = 22077449460.

The previous prime is 22144351139. The next prime is 22144351261. The reversal of 22144351153 is 35115344122.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22144351153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22144351753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33450351 + ... + 33451012.

It is an arithmetic number, because the mean of its divisors is an integer number (5552813212).

Almost surely, 222144351153 is an apocalyptic number.

It is an amenable number.

22144351153 is a deficient number, since it is larger than the sum of its proper divisors (66901695).

22144351153 is an equidigital number, since it uses as much as digits as its factorization.

22144351153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66901694.

The product of its digits is 14400, while the sum is 31.

Adding to 22144351153 its reverse (35115344122), we get a palindrome (57259695275).

The spelling of 22144351153 in words is "twenty-two billion, one hundred forty-four million, three hundred fifty-one thousand, one hundred fifty-three".

Divisors: 1 331 66901363 22144351153