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143142202 = 27232915329
BaseRepresentation
bin10001000100000…
…10110100111010
3100222100101012001
420202002310322
5243121022302
622112011214
73355455130
oct1042026472
9328311161
10143142202
1173888945
123bb30b0a
132386a638
1415021750
15c877787
hex8882d3a

143142202 has 32 divisors (see below), whose sum is σ = 264902400. Its totient is φ = 56652288.

The previous prime is 143142169. The next prime is 143142203. The reversal of 143142202 is 202241341.

It is a self number, because there is not a number n which added to its sum of digits gives 143142202.

It is not an unprimeable number, because it can be changed into a prime (143142203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1674 + ... + 17002.

It is an arithmetic number, because the mean of its divisors is an integer number (8278200).

Almost surely, 2143142202 is an apocalyptic number.

143142202 is a deficient number, since it is larger than the sum of its proper divisors (121760198).

143142202 is a wasteful number, since it uses less digits than its factorization.

143142202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15390.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 143142202 is about 11964.2050300051. The cubic root of 143142202 is about 523.1054337412.

Adding to 143142202 its reverse (202241341), we get a palindrome (345383543).

The spelling of 143142202 in words is "one hundred forty-three million, one hundred forty-two thousand, two hundred two".

Divisors: 1 2 7 14 23 29 46 58 161 203 322 406 667 1334 4669 9338 15329 30658 107303 214606 352567 444541 705134 889082 2467969 3111787 4935938 6223574 10224443 20448886 71571101 143142202