Search a number
-
+
512200212 = 22342683351
BaseRepresentation
bin11110100001111…
…000111000010100
31022200210110121020
4132201320320110
52022110401322
6122454121140
715456426036
oct3641707024
91280713536
10512200212
1124313a667
121236501b0
1382167264
144c04dc56
152ee7805c
hex1e878e14

512200212 has 12 divisors (see below), whose sum is σ = 1195133856. Its totient is φ = 170733400.

The previous prime is 512200201. The next prime is 512200217. The reversal of 512200212 is 212002215.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×5122002124 (a number of 36 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 512200191 and 512200200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512200217) 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, 21341664 + ... + 21341687.

It is an arithmetic number, because the mean of its divisors is an integer number (99594488).

Almost surely, 2512200212 is an apocalyptic number.

It is an amenable number.

512200212 is an abundant number, since it is smaller than the sum of its proper divisors (682933644).

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

512200212 is a wasteful number, since it uses less digits than its factorization.

512200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42683358 (or 42683356 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 512200212 is about 22631.8406675197. The cubic root of 512200212 is about 800.1042634941.

Adding to 512200212 its reverse (212002215), we get a palindrome (724202427).

The spelling of 512200212 in words is "five hundred twelve million, two hundred thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 42683351 85366702 128050053 170733404 256100106 512200212