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575051309 = 7238930169
BaseRepresentation
bin100010010001101…
…001011000101101
31111002001122002122
4202101221120231
52134203120214
6133021202325
720151566300
oct4221513055
91432048078
10575051309
11275668618
121407003a5
13921a1b61
1456530b37
153574088e
hex2246962d

575051309 has 12 divisors (see below), whose sum is σ = 670679100. Its totient is φ = 491617728.

The previous prime is 575051303. The next prime is 575051311. The reversal of 575051309 is 903150575.

It can be written as a sum of positive squares in 2 ways, for example, as 230948809 + 344102500 = 15197^2 + 18550^2 .

It is not a de Polignac number, because 575051309 - 216 = 574985773 is a prime.

It is a super-2 number, since 2×5750513092 = 661368015965226962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (575051303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3977 + ... + 34145.

It is an arithmetic number, because the mean of its divisors is an integer number (55889925).

Almost surely, 2575051309 is an apocalyptic number.

It is an amenable number.

575051309 is a deficient number, since it is larger than the sum of its proper divisors (95627791).

575051309 is a wasteful number, since it uses less digits than its factorization.

575051309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30572 (or 30565 counting only the distinct ones).

The product of its (nonzero) digits is 23625, while the sum is 35.

The square root of 575051309 is about 23980.2274593049. The cubic root of 575051309 is about 831.5764826492.

The spelling of 575051309 in words is "five hundred seventy-five million, fifty-one thousand, three hundred nine".

Divisors: 1 7 49 389 2723 19061 30169 211183 1478281 11735741 82150187 575051309