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801906 = 23761313
BaseRepresentation
bin11000011110001110010
31111202000020
43003301302
5201130111
625104310
76546630
oct3036162
91452006
10801906
114a8536
12328096
13221001
1416c350
1510c906
hexc3c72

801906 has 32 divisors (see below), whose sum is σ = 1868928. Its totient is φ = 224640.

The previous prime is 801883. The next prime is 801947. The reversal of 801906 is 609108.

801906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2406 + ... + 2718.

It is an arithmetic number, because the mean of its divisors is an integer number (58404).

2801906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 801906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (934464).

801906 is an abundant number, since it is smaller than the sum of its proper divisors (1067022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

801906 is a wasteful number, since it uses less digits than its factorization.

801906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 801906 is about 895.4920435157. The cubic root of 801906 is about 92.9054421032.

The spelling of 801906 in words is "eight hundred one thousand, nine hundred six".

Divisors: 1 2 3 6 7 14 21 42 61 122 183 313 366 427 626 854 939 1281 1878 2191 2562 4382 6573 13146 19093 38186 57279 114558 133651 267302 400953 801906