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740225 = 52291021
BaseRepresentation
bin10110100101110000001
31101121101202
42310232001
5142141400
623510545
76202043
oct2645601
91347352
10740225
11466162
122b8455
131cbc05
14153a93
15e94d5
hexb4b81

740225 has 12 divisors (see below), whose sum is σ = 950460. Its totient is φ = 571200.

The previous prime is 740191. The next prime is 740227. The reversal of 740225 is 522047.

It can be written as a sum of positive squares in 6 ways, for example, as 5776 + 734449 = 76^2 + 857^2 .

It is not a de Polignac number, because 740225 - 26 = 740161 is a prime.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 740197 and 740206.

It is not an unprimeable number, because it can be changed into a prime (740227) 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, 215 + ... + 1235.

It is an arithmetic number, because the mean of its divisors is an integer number (79205).

2740225 is an apocalyptic number.

It is an amenable number.

740225 is a deficient number, since it is larger than the sum of its proper divisors (210235).

740225 is a wasteful number, since it uses less digits than its factorization.

740225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 1055 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 740225 is about 860.3632953584. The cubic root of 740225 is about 90.4595833081.

The spelling of 740225 in words is "seven hundred forty thousand, two hundred twenty-five".

Divisors: 1 5 25 29 145 725 1021 5105 25525 29609 148045 740225