Search a number
-
+
805371369 = 31146352711
BaseRepresentation
bin110000000000001…
…111110111101001
32002010110002211020
4300000033313221
53122133340434
6211525523053
725646354325
oct6000176751
92063402736
10805371369
1138367a480
121a5873489
13cab13a0a
1478d66985
154aa88849
hex3000fde9

805371369 has 16 divisors (see below), whose sum is σ = 1174001664. Its totient is φ = 487040400.

The previous prime is 805371337. The next prime is 805371397. The reversal of 805371369 is 963173508.

It is not a de Polignac number, because 805371369 - 25 = 805371337 is a prime.

It is a super-2 number, since 2×8053713692 = 1297246084009868322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 805371369.

It is not an unprimeable number, because it can be changed into a prime (805371319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11077 + ... + 41634.

It is an arithmetic number, because the mean of its divisors is an integer number (73375104).

Almost surely, 2805371369 is an apocalyptic number.

It is an amenable number.

805371369 is a deficient number, since it is larger than the sum of its proper divisors (368630295).

805371369 is a wasteful number, since it uses less digits than its factorization.

805371369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53188.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 805371369 is about 28379.0656822948. The cubic root of 805371369 is about 930.3907746152.

The spelling of 805371369 in words is "eight hundred five million, three hundred seventy-one thousand, three hundred sixty-nine".

Divisors: 1 3 11 33 463 1389 5093 15279 52711 158133 579821 1739463 24405193 73215579 268457123 805371369