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512500041 = 3441154321
BaseRepresentation
bin11110100011000…
…010000101001001
31022201100200220000
4132203002011021
52022200000131
6122504353213
715462115134
oct3643020511
91281320800
10512500041
11243324959
12123775809
1382240881
144c0cb21b
152eed6ce6
hex1e8c2149

512500041 has 20 divisors (see below), whose sum is σ = 784264404. Its totient is φ = 333331200.

The previous prime is 512500039. The next prime is 512500057. The reversal of 512500041 is 140005215.

It can be written as a sum of positive squares in 2 ways, for example, as 28676025 + 483824016 = 5355^2 + 21996^2 .

It is not a de Polignac number, because 512500041 - 21 = 512500039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 512499987 and 512500023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512500741) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 73840 + ... + 80481.

Almost surely, 2512500041 is an apocalyptic number.

It is an amenable number.

512500041 is a deficient number, since it is larger than the sum of its proper divisors (271764363).

512500041 is a wasteful number, since it uses less digits than its factorization.

512500041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154374 (or 154365 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 512500041 is about 22638.4637508820. The cubic root of 512500041 is about 800.2603532819.

Adding to 512500041 its reverse (140005215), we get a palindrome (652505256).

The spelling of 512500041 in words is "five hundred twelve million, five hundred thousand, forty-one".

Divisors: 1 3 9 27 41 81 123 369 1107 3321 154321 462963 1388889 4166667 6327161 12500001 18981483 56944449 170833347 512500041