Search a number
874225 = 52112172
BaseRepresentation
bin11010101011011110001
31122102012201
43111123301
5210433400
630423201
710300522
oct3253361
91572181
10874225
11547900
12361b01
13247bc1
1418a849
1512406a
hexd56f1

874225 has 27 divisors (see below), whose sum is σ = 1265761. Its totient is φ = 598400.

The previous prime is 874217. The next prime is 874229. The reversal of 874225 is 522478.

The square root of 874225 is 935.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 20449 + 853776 = 143^2 + 924^2 .

It is not a de Polignac number, because 874225 - 23 = 874217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 874193 and 874202.

It is not an unprimeable number, because it can be changed into a prime (874229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 51417 + ... + 51433.

874225 is a Friedman number, since it can be written as (7+58*2^4)^2, using all its digits and the basic arithmetic operations.

2874225 is an apocalyptic number.

874225 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

874225 is the 935-th square number.

874225 is the 468-th centered octagonal number.

It is an amenable number.

874225 is a deficient number, since it is larger than the sum of its proper divisors (391536).

874225 is a wasteful number, since it uses less digits than its factorization.

874225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 33 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The cubic root of 874225 is about 95.6183122895.

The spelling of 874225 in words is "eight hundred seventy-four thousand, two hundred twenty-five".