Search a number
-
+
512206772 = 227111663009
BaseRepresentation
bin11110100001111…
…010011110110100
31022200210210121012
4132201322132310
52022111104042
6122454211352
715456454130
oct3641723664
91280723535
10512206772
11243144590
12123653b58
138216a23c
144c0523c0
152ee79e82
hex1e87a7b4

512206772 has 24 divisors (see below), whose sum is σ = 1117542720. Its totient is φ = 199560960.

The previous prime is 512206733. The next prime is 512206777. The reversal of 512206772 is 277602215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512206777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831197 + ... + 831812.

It is an arithmetic number, because the mean of its divisors is an integer number (46564280).

Almost surely, 2512206772 is an apocalyptic number.

It is an amenable number.

512206772 is an abundant number, since it is smaller than the sum of its proper divisors (605335948).

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

512206772 is a wasteful number, since it uses less digits than its factorization.

512206772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663031 (or 1663029 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 512206772 is about 22631.9855956122. The cubic root of 512206772 is about 800.1076792558.

Adding to 512206772 its reverse (277602215), we get a palindrome (789808987).

The spelling of 512206772 in words is "five hundred twelve million, two hundred six thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 1663009 3326018 6652036 11641063 18293099 23282126 36586198 46564252 73172396 128051693 256103386 512206772