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748225 = 521732
BaseRepresentation
bin10110110101011000001
31102000101001
42312223001
5142420400
624012001
76234262
oct2665301
91360331
10748225
11471175
12301001
1320274a
14156969
15eba6a
hexb6ac1

748225 has 9 divisors (see below), whose sum is σ = 933193. Its totient is φ = 595120.

The previous prime is 748219. The next prime is 748249. The reversal of 748225 is 522847.

The square root of 748225 is 865.

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

748225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 82369 + 665856 = 287^2 + 816^2 .

It is not a de Polignac number, because 748225 - 23 = 748217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 748193 and 748202.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4239 + ... + 4411.

748225 is a Friedman number, since it can be written as (857+4*2)^2, using all its digits and the basic arithmetic operations.

2748225 is an apocalyptic number.

748225 is the 865-th square number.

748225 is the 433-rd centered octagonal number.

It is an amenable number.

748225 is a deficient number, since it is larger than the sum of its proper divisors (184968).

748225 is an equidigital number, since it uses as much as digits as its factorization.

748225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 178 counting only the distinct ones).

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

The cubic root of 748225 is about 90.7842977110.

The spelling of 748225 in words is "seven hundred forty-eight thousand, two hundred twenty-five".

Divisors: 1 5 25 173 865 4325 29929 149645 748225