Search a number
-
+
801055 = 51511061
BaseRepresentation
bin11000011100100011111
31111200211201
43003210133
5201113210
625100331
76544303
oct3034437
91450751
10801055
114a7932
123276a7
132207c8
1416bd03
1510c53a
hexc391f

801055 has 8 divisors (see below), whose sum is σ = 968544. Its totient is φ = 636000.

The previous prime is 801037. The next prime is 801061. The reversal of 801055 is 550108.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 801055 - 219 = 276767 is a prime.

It is a super-2 number, since 2×8010552 = 1283378226050, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 225 + ... + 1285.

It is an arithmetic number, because the mean of its divisors is an integer number (121068).

2801055 is an apocalyptic number.

801055 is a deficient number, since it is larger than the sum of its proper divisors (167489).

801055 is a wasteful number, since it uses less digits than its factorization.

801055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 801055 is about 895.0167596196. The cubic root of 801055 is about 92.8725660490.

The spelling of 801055 in words is "eight hundred one thousand, fifty-five".

Divisors: 1 5 151 755 1061 5305 160211 801055