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572242906 = 22923334229
BaseRepresentation
bin100010000110111…
…011101111011010
31110212202221200201
4202012323233122
52132443233111
6132441052414
720115661444
oct4206735732
91425687621
10572242906
1127401a624
1213b78710a
139172a791
1455ddd494
15353886c1
hex221bbbda

572242906 has 16 divisors (see below), whose sum is σ = 888553800. Its totient is φ = 276071488.

The previous prime is 572242901. The next prime is 572242939. The reversal of 572242906 is 609242275.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 566678025 + 5564881 = 23805^2 + 2359^2 .

It is not an unprimeable number, because it can be changed into a prime (572242901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133200 + ... + 137428.

Almost surely, 2572242906 is an apocalyptic number.

572242906 is a deficient number, since it is larger than the sum of its proper divisors (316310894).

572242906 is a wasteful number, since it uses less digits than its factorization.

572242906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6593.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 572242906 is about 23921.5991522306. The cubic root of 572242906 is about 830.2205375157.

The spelling of 572242906 in words is "five hundred seventy-two million, two hundred forty-two thousand, nine hundred six".

Divisors: 1 2 29 58 2333 4229 4666 8458 67657 122641 135314 245282 9866257 19732514 286121453 572242906