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512204081 = 1278114973
BaseRepresentation
bin11110100001111…
…001110100110001
31022200210122220112
4132201321310301
52022111012311
6122454151105
715456443234
oct3641716461
91280718815
10512204081
11243142564
12123652495
1382168c4c
144c05141b
152ee7928b
hex1e879d31

512204081 has 8 divisors (see below), whose sum is σ = 516977664. Its totient is φ = 507442320.

The previous prime is 512204057. The next prime is 512204107. The reversal of 512204081 is 180402215.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-512204081 is a prime.

It is a super-2 number, since 2×5122040812 = 524706041186109122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (512204681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100511 + ... + 105483.

It is an arithmetic number, because the mean of its divisors is an integer number (64622208).

Almost surely, 2512204081 is an apocalyptic number.

It is an amenable number.

512204081 is a deficient number, since it is larger than the sum of its proper divisors (4773583).

512204081 is a wasteful number, since it uses less digits than its factorization.

512204081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5911.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 512204081 is about 22631.9261442768. The cubic root of 512204081 is about 800.1062780681.

Adding to 512204081 its reverse (180402215), we get a palindrome (692606296).

The spelling of 512204081 in words is "five hundred twelve million, two hundred four thousand, eighty-one".

Divisors: 1 127 811 4973 102997 631571 4033103 512204081