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469225 = 521372
BaseRepresentation
bin1110010100011101001
3212211122201
41302203221
5110003400
614020201
73663001
oct1624351
9784581
10469225
112a0599
121a7661
13135763
14c3001
159406a
hex728e9

469225 has 9 divisors (see below), whose sum is σ = 586117. Its totient is φ = 372640.

The previous prime is 469219. The next prime is 469229. The reversal of 469225 is 522964.

The square root of 469225 is 685.

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 1369 + 467856 = 37^2 + 684^2 .

It is not a de Polignac number, because 469225 - 25 = 469193 is a prime.

It is an Ulam number.

It is a Duffinian number.

469225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 469193 and 469202.

It is not an unprimeable number, because it can be changed into a prime (469229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3357 + ... + 3493.

469225 is a Friedman number, since it can be written as (9+(6+5*4)^2)^2, using all its digits and the basic arithmetic operations.

2469225 is an apocalyptic number.

469225 is the 685-th square number.

469225 is the 343-rd centered octagonal number.

It is an amenable number.

469225 is a deficient number, since it is larger than the sum of its proper divisors (116892).

469225 is an equidigital number, since it uses as much as digits as its factorization.

469225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 142 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The cubic root of 469225 is about 77.7070426432.

The spelling of 469225 in words is "four hundred sixty-nine thousand, two hundred twenty-five".

Divisors: 1 5 25 137 685 3425 18769 93845 469225