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512250520 = 235120110663
BaseRepresentation
bin11110100010000…
…101001010011000
31022200220000121111
4132202011022120
52022114004040
6122455150104
715460025515
oct3642051230
91280800544
10512250520
11243174441
12123675334
1382184122
144c06430c
152ee87dea
hex1e885298

512250520 has 32 divisors (see below), whose sum is σ = 1153631520. Its totient is φ = 204710400.

The previous prime is 512250499. The next prime is 512250521. The reversal of 512250520 is 25052215.

It is a junction number, because it is equal to n+sod(n) for n = 512250491 and 512250500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512250521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42709 + ... + 53371.

It is an arithmetic number, because the mean of its divisors is an integer number (36050985).

Almost surely, 2512250520 is an apocalyptic number.

It is an amenable number.

512250520 is an abundant number, since it is smaller than the sum of its proper divisors (641381000).

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

512250520 is a wasteful number, since it uses less digits than its factorization.

512250520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11875 (or 11871 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 512250520 is about 22632.9520831906. The cubic root of 512250520 is about 800.1304578914.

The spelling of 512250520 in words is "five hundred twelve million, two hundred fifty thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1201 2402 4804 6005 9608 10663 12010 21326 24020 42652 48040 53315 85304 106630 213260 426520 12806263 25612526 51225052 64031315 102450104 128062630 256125260 512250520