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809490295 = 5161898059
BaseRepresentation
bin110000001111111…
…101011101110111
32002102012100221001
4300033331131313
53124212142140
6212154104131
726026361005
oct6017753567
92072170831
10809490295
11385a33049
121a711b047
13cb926753
1479719a75
154b0ede9a
hex303fd777

809490295 has 4 divisors (see below), whose sum is σ = 971388360. Its totient is φ = 647592232.

The previous prime is 809490293. The next prime is 809490323. The reversal of 809490295 is 592094908.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 809490295 - 21 = 809490293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809490293) 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, 80949025 + ... + 80949034.

It is an arithmetic number, because the mean of its divisors is an integer number (242847090).

Almost surely, 2809490295 is an apocalyptic number.

809490295 is a deficient number, since it is larger than the sum of its proper divisors (161898065).

809490295 is a wasteful number, since it uses less digits than its factorization.

809490295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161898064.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 809490295 is about 28451.5429282842. The cubic root of 809490295 is about 931.9741833584.

It can be divided in two parts, 8094 and 90295, that added together give a palindrome (98389).

The spelling of 809490295 in words is "eight hundred nine million, four hundred ninety thousand, two hundred ninety-five".

Divisors: 1 5 161898059 809490295