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806993269 = 2243359783
BaseRepresentation
bin110000000110011…
…011110101110101
32002020111111122121
4300012123311311
53123042241034
6212024355541
725666221025
oct6006336565
92066444577
10806993269
11384587a95
121a6315bb1
13cb261014
1479269a85
154aca91b4
hex3019bd75

806993269 has 4 divisors (see below), whose sum is σ = 807355296. Its totient is φ = 806631244.

The previous prime is 806993267. The next prime is 806993287. The reversal of 806993269 is 962399608.

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.

It is a cyclic number.

It is not a de Polignac number, because 806993269 - 21 = 806993267 is a prime.

It is a super-4 number, since 4×8069932694 (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806993267) 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, 177649 + ... + 182134.

It is an arithmetic number, because the mean of its divisors is an integer number (201838824).

Almost surely, 2806993269 is an apocalyptic number.

It is an amenable number.

806993269 is a deficient number, since it is larger than the sum of its proper divisors (362027).

806993269 is a wasteful number, since it uses less digits than its factorization.

806993269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362026.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The square root of 806993269 is about 28407.6269512256. The cubic root of 806993269 is about 931.0149127533.

The spelling of 806993269 in words is "eight hundred six million, nine hundred ninety-three thousand, two hundred sixty-nine".

Divisors: 1 2243 359783 806993269