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4105221497 = 13315786269
BaseRepresentation
bin1111010010110000…
…1011010101111001
3101121002200212012122
43310230023111321
531401414041442
61515205051025
7203505543536
oct36454132571
911532625178
104105221497
111817321743
129669b6a75
13505672a60
142ad303d8d
1519060bdd2
hexf4b0b579

4105221497 has 4 divisors (see below), whose sum is σ = 4421007780. Its totient is φ = 3789435216.

The previous prime is 4105221467. The next prime is 4105221553. The reversal of 4105221497 is 7941225014.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7941225014 = 23970612507.

It can be written as a sum of positive squares in 2 ways, for example, as 2360405056 + 1744816441 = 48584^2 + 41771^2 .

It is a cyclic number.

It is not a de Polignac number, because 4105221497 - 220 = 4104172921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4105221437) 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, 157893122 + ... + 157893147.

It is an arithmetic number, because the mean of its divisors is an integer number (1105251945).

Almost surely, 24105221497 is an apocalyptic number.

It is an amenable number.

4105221497 is a deficient number, since it is larger than the sum of its proper divisors (315786283).

4105221497 is a wasteful number, since it uses less digits than its factorization.

4105221497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315786282.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 4105221497 is about 64072.0024425646. The cubic root of 4105221497 is about 1601.1998158066.

The spelling of 4105221497 in words is "four billion, one hundred five million, two hundred twenty-one thousand, four hundred ninety-seven".

Divisors: 1 13 315786269 4105221497