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570540997 = 1389493121
BaseRepresentation
bin100010000000011…
…100001111000101
31110202120111010001
4202000130033011
52132024302442
6132340401301
720065342555
oct4200341705
91422514101
10570540997
11273067994
1213b0a6231
1391282c30
1455ab9165
153514e2b7
hex2201c3c5

570540997 has 8 divisors (see below), whose sum is σ = 621333720. Its totient is φ = 520734720.

The previous prime is 570540931. The next prime is 570541001. The reversal of 570540997 is 799045075.

It is a happy number.

It is a Cunningham number, because it is equal to 238862+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 570540996 = 1^2 + 23886^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 570540997 - 227 = 436323269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (570540197) 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 7 ways as a sum of consecutive naturals, for example, 245404 + ... + 247717.

It is an arithmetic number, because the mean of its divisors is an integer number (77666715).

Almost surely, 2570540997 is an apocalyptic number.

It is an amenable number.

570540997 is a deficient number, since it is larger than the sum of its proper divisors (50792723).

570540997 is a wasteful number, since it uses less digits than its factorization.

570540997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493223.

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 570540997 is about 23886.0000209328. Note that the first 4 decimals coincide. The cubic root of 570540997 is about 829.3966665852.

The spelling of 570540997 in words is "five hundred seventy million, five hundred forty thousand, nine hundred ninety-seven".

Divisors: 1 13 89 1157 493121 6410573 43887769 570540997