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512319172 = 22137934889
BaseRepresentation
bin11110100010010…
…101111011000100
31022201000111210011
4132202111323010
52022123203142
6122500440004
715460432621
oct3642257304
91281014704
10512319172
11243210a82
121236a9004
13821a9451
144c081348
152ee9d417
hex1e895ec4

512319172 has 12 divisors (see below), whose sum is σ = 903103740. Its totient is φ = 254289536.

The previous prime is 512319161. The next prime is 512319179. The reversal of 512319172 is 271913215.

It can be written as a sum of positive squares in 2 ways, for example, as 101284096 + 411035076 = 10064^2 + 20274^2 .

It is not an unprimeable number, because it can be changed into a prime (512319179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466897 + ... + 467992.

It is an arithmetic number, because the mean of its divisors is an integer number (75258645).

Almost surely, 2512319172 is an apocalyptic number.

It is an amenable number.

512319172 is a deficient number, since it is larger than the sum of its proper divisors (390784568).

512319172 is a wasteful number, since it uses less digits than its factorization.

512319172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935030 (or 935028 counting only the distinct ones).

The product of its digits is 3780, while the sum is 31.

The square root of 512319172 is about 22634.4686705918. The cubic root of 512319172 is about 800.1662008859.

The spelling of 512319172 in words is "five hundred twelve million, three hundred nineteen thousand, one hundred seventy-two".

Divisors: 1 2 4 137 274 548 934889 1869778 3739556 128079793 256159586 512319172