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234205143 = 3400719483
BaseRepresentation
bin11011111010110…
…10111111010111
3121022200212001120
431331122333113
5434424031033
635123455023
75542465554
oct1575327727
9538625046
10234205143
11110225877
1266527473
13396a2333
1423167a2b
15158641b3
hexdf5afd7

234205143 has 8 divisors (see below), whose sum is σ = 312367488. Its totient is φ = 156089784.

The previous prime is 234205121. The next prime is 234205157. The reversal of 234205143 is 341502432.

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

It is not a de Polignac number, because 234205143 - 210 = 234204119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234205193) 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, 2280 + ... + 21762.

It is an arithmetic number, because the mean of its divisors is an integer number (39045936).

Almost surely, 2234205143 is an apocalyptic number.

234205143 is a deficient number, since it is larger than the sum of its proper divisors (78162345).

234205143 is a wasteful number, since it uses less digits than its factorization.

234205143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23493.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 234205143 is about 15303.7623805390. The cubic root of 234205143 is about 616.4040391617.

Adding to 234205143 its reverse (341502432), we get a palindrome (575707575).

The spelling of 234205143 in words is "two hundred thirty-four million, two hundred five thousand, one hundred forty-three".

Divisors: 1 3 4007 12021 19483 58449 78068381 234205143