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745025 = 52171753
BaseRepresentation
bin10110101111001000001
31101211222112
42311321001
5142320100
623545105
76222041
oct2657101
91354875
10745025
11469826
122bb195
13201158
14155721
15eab35
hexb5e41

745025 has 12 divisors (see below), whose sum is σ = 978732. Its totient is φ = 560640.

The previous prime is 745013. The next prime is 745027. The reversal of 745025 is 520547.

745025 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 6 ways, for example, as 66049 + 678976 = 257^2 + 824^2 .

It is a de Polignac number, because none of the positive numbers 2k-745025 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (745027) 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, 452 + ... + 1301.

It is an arithmetic number, because the mean of its divisors is an integer number (81561).

2745025 is an apocalyptic number.

It is an amenable number.

745025 is a deficient number, since it is larger than the sum of its proper divisors (233707).

745025 is a wasteful number, since it uses less digits than its factorization.

745025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780 (or 1775 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 745025 is about 863.1483070713. The cubic root of 745025 is about 90.6546910245.

The spelling of 745025 in words is "seven hundred forty-five thousand, twenty-five".

Divisors: 1 5 17 25 85 425 1753 8765 29801 43825 149005 745025