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512130000 = 2435443397
BaseRepresentation
bin11110100001100…
…111101111010000
31022200122220021210
4132201213233100
52022101130000
6122452420120
715456014244
oct3641475720
91280586253
10512130000
112430a1938
12123617640
1382141305
144c032424
152ee62350
hex1e867bd0

512130000 has 200 divisors, whose sum is σ = 1695932128. Its totient is φ = 133056000.

The previous prime is 512129999. The next prime is 512130023. The reversal of 512130000 is 31215.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1289802 + ... + 1290198.

Almost surely, 2512130000 is an apocalyptic number.

512130000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847966064).

512130000 is an abundant number, since it is smaller than the sum of its proper divisors (1183802128).

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

512130000 is a wasteful number, since it uses less digits than its factorization.

512130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 512130000 is about 22630.2894369471. The cubic root of 512130000 is about 800.0677026036.

Adding to 512130000 its reverse (31215), we get a palindrome (512161215).

The spelling of 512130000 in words is "five hundred twelve million, one hundred thirty thousand".