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200512430 = 2520051243
BaseRepresentation
bin10111111001110…
…01001110101110
3111222022002100022
423330321032232
5402312344210
631521402142
74653220226
oct1374711656
9458262308
10200512430
11a3202a58
1257199352
1332706611
141c8b7086
151290b155
hexbf393ae

200512430 has 8 divisors (see below), whose sum is σ = 360922392. Its totient is φ = 80204968.

The previous prime is 200512423. The next prime is 200512439. The reversal of 200512430 is 34215002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200512399 and 200512408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200512439) 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, 10025612 + ... + 10025631.

It is an arithmetic number, because the mean of its divisors is an integer number (45115299).

Almost surely, 2200512430 is an apocalyptic number.

200512430 is a deficient number, since it is larger than the sum of its proper divisors (160409962).

200512430 is a wasteful number, since it uses less digits than its factorization.

200512430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20051250.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 200512430 is about 14160.2411702626. The cubic root of 200512430 is about 585.3025731620.

Adding to 200512430 its reverse (34215002), we get a palindrome (234727432).

The spelling of 200512430 in words is "two hundred million, five hundred twelve thousand, four hundred thirty".

Divisors: 1 2 5 10 20051243 40102486 100256215 200512430