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571225 = 5273313
BaseRepresentation
bin10001011011101011001
31002000120111
42023131121
5121234400
620124321
74566244
oct2133531
91060514
10571225
11360196
122366a1
13170005
1410c25b
15b43ba
hex8b759

571225 has 12 divisors (see below), whose sum is σ = 720316. Its totient is φ = 449280.

The previous prime is 571223. The next prime is 571229. The reversal of 571225 is 522175.

It can be written as a sum of positive squares in 6 ways, for example, as 112896 + 458329 = 336^2 + 677^2 .

It is not a de Polignac number, because 571225 - 21 = 571223 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

571225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 571196 and 571205.

It is not an unprimeable number, because it can be changed into a prime (571223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1669 + ... + 1981.

2571225 is an apocalyptic number.

It is an amenable number.

571225 is a deficient number, since it is larger than the sum of its proper divisors (149091).

571225 is a wasteful number, since it uses less digits than its factorization.

571225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 391 counting only the distinct ones).

The product of its digits is 700, while the sum is 22.

The square root of 571225 is about 755.7942841806. The cubic root of 571225 is about 82.9727979761.

The spelling of 571225 in words is "five hundred seventy-one thousand, two hundred twenty-five".

Divisors: 1 5 25 73 313 365 1565 1825 7825 22849 114245 571225