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200345431 = 11131401017
BaseRepresentation
bin10111111000100…
…00011101010111
3111221222121021011
423330100131113
5402242023211
631514033051
74651623316
oct1374203527
9457877234
10200345431
11a30a9540
1257118787
13326785c0
141c87227d
15128c6921
hexbf10757

200345431 has 8 divisors (see below), whose sum is σ = 235371024. Its totient is φ = 168121920.

The previous prime is 200345423. The next prime is 200345473. The reversal of 200345431 is 134543002.

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

It is a cyclic number.

It is not a de Polignac number, because 200345431 - 23 = 200345423 is a prime.

It is a super-2 number, since 2×2003454312 = 80276583445151522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200345231) 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, 700366 + ... + 700651.

It is an arithmetic number, because the mean of its divisors is an integer number (29421378).

Almost surely, 2200345431 is an apocalyptic number.

200345431 is a deficient number, since it is larger than the sum of its proper divisors (35025593).

200345431 is a wasteful number, since it uses less digits than its factorization.

200345431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401041.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 200345431 is about 14154.3431850439. The cubic root of 200345431 is about 585.1400361181.

Adding to 200345431 its reverse (134543002), we get a palindrome (334888433).

The spelling of 200345431 in words is "two hundred million, three hundred forty-five thousand, four hundred thirty-one".

Divisors: 1 11 13 143 1401017 15411187 18213221 200345431