Search a number
-
+
804355145 = 511109134171
BaseRepresentation
bin101111111100010…
…111110001001001
32002001112110211022
4233330113301021
53121403331040
6211452042225
725634622506
oct5774276111
92061473738
10804355145
11383045a20
121a5463375
13ca8492b9
1478b804ad
154a9376b5
hex2ff17c49

804355145 has 16 divisors (see below), whose sum is σ = 1062642240. Its totient is φ = 579614400.

The previous prime is 804355129. The next prime is 804355147. The reversal of 804355145 is 541553408.

It is not a de Polignac number, because 804355145 - 24 = 804355129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (804355147) 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, 61091 + ... + 73080.

It is an arithmetic number, because the mean of its divisors is an integer number (66415140).

Almost surely, 2804355145 is an apocalyptic number.

It is an amenable number.

804355145 is a deficient number, since it is larger than the sum of its proper divisors (258287095).

804355145 is a wasteful number, since it uses less digits than its factorization.

804355145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134296.

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 804355145 is about 28361.1555653150. The cubic root of 804355145 is about 929.9992850806. Note that the first 3 decimals are identical.

The spelling of 804355145 in words is "eight hundred four million, three hundred fifty-five thousand, one hundred forty-five".

Divisors: 1 5 11 55 109 545 1199 5995 134171 670855 1475881 7379405 14624639 73123195 160871029 804355145