Search a number
-
+
1422801 = 321491061
BaseRepresentation
bin101011011010111010001
32200021201100
411123113101
5331012201
650255013
715044052
oct5332721
92607640
101422801
11891a76
12587469
133aa7c3
14290729
151d1886
hex15b5d1

1422801 has 12 divisors (see below), whose sum is σ = 2070900. Its totient is φ = 941280.

The previous prime is 1422797. The next prime is 1422821. The reversal of 1422801 is 1082241.

It can be written as a sum of positive squares in 2 ways, for example, as 518400 + 904401 = 720^2 + 951^2 .

It is not a de Polignac number, because 1422801 - 22 = 1422797 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1422821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 811 + ... + 1871.

It is an arithmetic number, because the mean of its divisors is an integer number (172575).

21422801 is an apocalyptic number.

It is an amenable number.

1422801 is a deficient number, since it is larger than the sum of its proper divisors (648099).

1422801 is a wasteful number, since it uses less digits than its factorization.

1422801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1422801 is about 1192.8122232774. The cubic root of 1422801 is about 112.4729416406.

The spelling of 1422801 in words is "one million, four hundred twenty-two thousand, eight hundred one".

Divisors: 1 3 9 149 447 1061 1341 3183 9549 158089 474267 1422801