Search a number
297025 = 521092
BaseRepresentation
bin1001000100001000001
3120002102221
41020201001
534001100
610211041
72344651
oct1104101
9502387
10297025
11193183
12123a81
13a5271
147a361
155d01a
hex48841

297025 has 9 divisors (see below), whose sum is σ = 371721. Its totient is φ = 235440.

The previous prime is 297023. The next prime is 297049. The reversal of 297025 is 520792.

The square root of 297025 is 545.

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 1089 + 295936 = 33^2 + 544^2 .

It is not a de Polignac number, because 297025 - 21 = 297023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (297023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2671 + ... + 2779.

297025 is a Friedman number, since it can be written as ((70^2+5)/9)^2, using all its digits and the basic arithmetic operations.

2297025 is an apocalyptic number.

297025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

297025 is the 545-th square number.

297025 is the 273-rd centered octagonal number.

It is an amenable number.

297025 is a deficient number, since it is larger than the sum of its proper divisors (74696).

297025 is an equidigital number, since it uses as much as digits as its factorization.

297025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The cubic root of 297025 is about 66.7212747017.

Multiplying 297025 by its sum of digits (25), we get a square (7425625 = 27252).

297025 divided by its sum of digits (25) gives a square (11881 = 1092).

The spelling of 297025 in words is "two hundred ninety-seven thousand, twenty-five".

Divisors: 1 5 25 109 545 2725 11881 59405 297025