Search a number
-
+
806572868 = 22533804589
BaseRepresentation
bin110000000100110…
…101001101000100
32002012201010222012
4300010311031010
53122440312433
6212011353352
725662520253
oct6004651504
92065633865
10806572868
11384320152
121a6152858
13cb14486a
147919a79a
154ac24848
hex30135344

806572868 has 12 divisors (see below), whose sum is σ = 1438135020. Its totient is φ = 395677152.

The previous prime is 806572861. The next prime is 806572873. The reversal of 806572868 is 868275608.

It can be written as a sum of positive squares in 2 ways, for example, as 450797824 + 355775044 = 21232^2 + 18862^2 .

It is not an unprimeable number, because it can be changed into a prime (806572861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1902083 + ... + 1902506.

It is an arithmetic number, because the mean of its divisors is an integer number (119844585).

Almost surely, 2806572868 is an apocalyptic number.

It is an amenable number.

806572868 is a deficient number, since it is larger than the sum of its proper divisors (631562152).

806572868 is a wasteful number, since it uses less digits than its factorization.

806572868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804646 (or 3804644 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 50.

The square root of 806572868 is about 28400.2265483922. The cubic root of 806572868 is about 930.8532147560.

The spelling of 806572868 in words is "eight hundred six million, five hundred seventy-two thousand, eight hundred sixty-eight".

Divisors: 1 2 4 53 106 212 3804589 7609178 15218356 201643217 403286434 806572868