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22126142405 = 55383494877
BaseRepresentation
bin10100100110110100…
…100010001111000101
32010010000020111022202
4110212310202033011
5330303243024110
614055320004245
71412210051543
oct244664421705
963100214282
1022126142405
1194246a3304
124356000685
132118019973
1410dc818d93
158977490a5
hex526d223c5

22126142405 has 8 divisors (see below), whose sum is σ = 27052340472. Its totient is φ = 17366934208.

The previous prime is 22126142387. The next prime is 22126142419. The reversal of 22126142405 is 50424162122.

It can be written as a sum of positive squares in 4 ways, for example, as 11186446756 + 10939695649 = 105766^2 + 104593^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22126142405 - 28 = 22126142149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41747174 + ... + 41747703.

It is an arithmetic number, because the mean of its divisors is an integer number (3381542559).

Almost surely, 222126142405 is an apocalyptic number.

It is an amenable number.

22126142405 is a deficient number, since it is larger than the sum of its proper divisors (4926198067).

22126142405 is an equidigital number, since it uses as much as digits as its factorization.

22126142405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83494935.

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 22126142405 in words is "twenty-two billion, one hundred twenty-six million, one hundred forty-two thousand, four hundred five".

Divisors: 1 5 53 265 83494877 417474385 4425228481 22126142405