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512047272 = 233111939573
BaseRepresentation
bin11110100001010…
…011100010101000
31022200111200210210
4132201103202220
52022041003042
6122450541120
715455221122
oct3641234250
91280450723
10512047272
11243045770
121235977a0
1382112769
144c010212
152ee47a9c
hex1e8538a8

512047272 has 32 divisors (see below), whose sum is σ = 1396493280. Its totient is φ = 155165760.

The previous prime is 512047271. The next prime is 512047297. The reversal of 512047272 is 272740215.

It is not an unprimeable number, because it can be changed into a prime (512047271) 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 7 ways as a sum of consecutive naturals, for example, 969523 + ... + 970050.

It is an arithmetic number, because the mean of its divisors is an integer number (43640415).

Almost surely, 2512047272 is an apocalyptic number.

It is an amenable number.

512047272 is an abundant number, since it is smaller than the sum of its proper divisors (884446008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512047272 is a wasteful number, since it uses less digits than its factorization.

512047272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939593 (or 1939589 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 512047272 is about 22628.4615473523. The cubic root of 512047272 is about 800.0246200756.

Adding to 512047272 its reverse (272740215), we get a palindrome (784787487).

The spelling of 512047272 in words is "five hundred twelve million, forty-seven thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 1939573 3879146 5818719 7758292 11637438 15516584 21335303 23274876 42670606 46549752 64005909 85341212 128011818 170682424 256023636 512047272