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200542143 = 3290323027
BaseRepresentation
bin10111111010000…
…00011110111111
3111222100121002210
423331000132333
5402314322033
631522151503
74653402654
oct1375003677
9458317083
10200542143
11a322330a
12571b2593
1332716cb9
141c8c3c2b
1512914d63
hexbf407bf

200542143 has 8 divisors (see below), whose sum is σ = 267493248. Its totient is φ = 133642904.

The previous prime is 200542141. The next prime is 200542151. The reversal of 200542143 is 341245002.

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 200542143 - 21 = 200542141 is a prime.

It is a super-2 number, since 2×2005421432 = 80434302238064898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200542141) 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, 2805 + ... + 20222.

It is an arithmetic number, because the mean of its divisors is an integer number (33436656).

Almost surely, 2200542143 is an apocalyptic number.

200542143 is a deficient number, since it is larger than the sum of its proper divisors (66951105).

200542143 is a wasteful number, since it uses less digits than its factorization.

200542143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25933.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 200542143 is about 14161.2903013814. The cubic root of 200542143 is about 585.3314828185.

Adding to 200542143 its reverse (341245002), we get a palindrome (541787145).

The spelling of 200542143 in words is "two hundred million, five hundred forty-two thousand, one hundred forty-three".

Divisors: 1 3 2903 8709 23027 69081 66847381 200542143