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200431005 = 3513362067
BaseRepresentation
bin10111111001001…
…01010110011101
3111222010221122120
423330211112131
5402302243010
631515533153
74652430645
oct1374452635
9458127576
10200431005
11a3157865
125715a1b9
13326a8538
141c895525
15128e1e70
hexbf2559d

200431005 has 8 divisors (see below), whose sum is σ = 320689632. Its totient is φ = 106896528.

The previous prime is 200430991. The next prime is 200431013. The reversal of 200431005 is 500134002.

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

It is not a de Polignac number, because 200431005 - 27 = 200430877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 13362067 = 200431005 / (2 + 0 + 0 + 4 + 3 + 1 + 0 + 0 + 5).

It is a congruent number.

It is an unprimeable number.

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, 6681019 + ... + 6681048.

It is an arithmetic number, because the mean of its divisors is an integer number (40086204).

Almost surely, 2200431005 is an apocalyptic number.

It is an amenable number.

200431005 is a deficient number, since it is larger than the sum of its proper divisors (120258627).

200431005 is a wasteful number, since it uses less digits than its factorization.

200431005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13362075.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 200431005 is about 14157.3657507320. The cubic root of 200431005 is about 585.2233349912.

Adding to 200431005 its reverse (500134002), we get a palindrome (700565007).

The spelling of 200431005 in words is "two hundred million, four hundred thirty-one thousand, five".

Divisors: 1 3 5 15 13362067 40086201 66810335 200431005