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512430211 = 1313911681
BaseRepresentation
bin11110100010110…
…001000010000011
31022201020011002201
4132202301002003
52022140231321
6122503054031
715461404426
oct3642610203
91281204081
10512430211
11243287447
12123741317
1382217b57
144c0ad9bd
152eec1291
hex1e8b1083

512430211 has 4 divisors (see below), whose sum is σ = 516342024. Its totient is φ = 508518400.

The previous prime is 512430199. The next prime is 512430229. The reversal of 512430211 is 112034215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 512430211 - 29 = 512429699 is a prime.

It is a super-2 number, since 2×5124302112 = 525169442291009042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512430241) 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, 1955710 + ... + 1955971.

It is an arithmetic number, because the mean of its divisors is an integer number (129085506).

Almost surely, 2512430211 is an apocalyptic number.

512430211 is a deficient number, since it is larger than the sum of its proper divisors (3911813).

512430211 is a wasteful number, since it uses less digits than its factorization.

512430211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911812.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 512430211 is about 22636.9214117114. The cubic root of 512430211 is about 800.2240055002.

Adding to 512430211 its reverse (112034215), we get a palindrome (624464426).

The spelling of 512430211 in words is "five hundred twelve million, four hundred thirty thousand, two hundred eleven".

Divisors: 1 131 3911681 512430211