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5570645 = 51765537
BaseRepresentation
bin10101010000000001010101
3101111000111012
4111100001111
52411230040
6315222005
765230643
oct25200125
911430435
105570645
113165343
121a47905
131200752
14a50193
15750865
hex550055

5570645 has 8 divisors (see below), whose sum is σ = 7078104. Its totient is φ = 4194304.

The previous prime is 5570633. The next prime is 5570647. The reversal of 5570645 is 5460755.

It is a happy number.

5570645 is nontrivially palindromic in base 2, base 4 and base 16.

It can be written as a sum of positive squares in 4 ways, for example, as 3189796 + 2380849 = 1786^2 + 1543^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 11-Lehmer number, since φ(5570645) divides (5570645-1)11.

It is a cyclic number.

It is not a de Polignac number, because 5570645 - 210 = 5569621 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5570647) by changing a digit.

In principle, a polygon with 5570645 sides can be constructed with ruler and compass.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32684 + ... + 32853.

It is an arithmetic number, because the mean of its divisors is an integer number (884763).

Almost surely, 25570645 is an apocalyptic number.

It is an amenable number.

5570645 is a deficient number, since it is larger than the sum of its proper divisors (1507459).

5570645 is a wasteful number, since it uses less digits than its factorization.

5570645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65559.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 5570645 is about 2360.2213879211. The cubic root of 5570645 is about 177.2699658486.

The spelling of 5570645 in words is "five million, five hundred seventy thousand, six hundred forty-five".

Divisors: 1 5 17 85 65537 327685 1114129 5570645