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200342631 = 3193514783
BaseRepresentation
bin10111111000011…
…11110001100111
3111221222110102110
423330033301213
5402241431011
631514012103
74651612206
oct1374176147
9457873373
10200342631
11a30a7425
1257117033
1332677248
141c87123d
15128c5ba6
hexbf0fc67

200342631 has 8 divisors (see below), whose sum is σ = 281182720. Its totient is φ = 126532152.

The previous prime is 200342629. The next prime is 200342683. The reversal of 200342631 is 136243002.

It is a happy number.

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

It is not a de Polignac number, because 200342631 - 21 = 200342629 is a prime.

It is a super-2 number, since 2×2003426312 = 80274339592004322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200342598 and 200342607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200343631) 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, 1757335 + ... + 1757448.

It is an arithmetic number, because the mean of its divisors is an integer number (35147840).

Almost surely, 2200342631 is an apocalyptic number.

200342631 is a deficient number, since it is larger than the sum of its proper divisors (80840089).

200342631 is a wasteful number, since it uses less digits than its factorization.

200342631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514805.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 200342631 is about 14154.2442751282. The cubic root of 200342631 is about 585.1373101600.

Adding to 200342631 its reverse (136243002), we get a palindrome (336585633).

The spelling of 200342631 in words is "two hundred million, three hundred forty-two thousand, six hundred thirty-one".

Divisors: 1 3 19 57 3514783 10544349 66780877 200342631