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805268045 = 5880718287
BaseRepresentation
bin101111111111110…
…110101001001101
32002010020212002102
4233333312221031
53122122034140
6211523404445
725645444151
oct5777665115
92063225072
10805268045
1138360988a
121a5823725
13caaa898a
1478d3b061
154aa67e15
hex2fff6a4d

805268045 has 8 divisors (see below), whose sum is σ = 966484224. Its totient is φ = 644106064.

The previous prime is 805268041. The next prime is 805268069. The reversal of 805268045 is 540862508.

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 805268045 - 22 = 805268041 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805268041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34892 + ... + 53178.

It is an arithmetic number, because the mean of its divisors is an integer number (120810528).

Almost surely, 2805268045 is an apocalyptic number.

It is an amenable number.

805268045 is a deficient number, since it is larger than the sum of its proper divisors (161216179).

805268045 is a wasteful number, since it uses less digits than its factorization.

805268045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27099.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 805268045 is about 28377.2451975170. The cubic root of 805268045 is about 930.3509851833.

The spelling of 805268045 in words is "eight hundred five million, two hundred sixty-eight thousand, forty-five".

Divisors: 1 5 8807 18287 44035 91435 161053609 805268045