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142042233 = 3193976277
BaseRepresentation
bin10000111011101…
…10010001111001
3100220021111022110
420131312101321
5242330322413
622032242533
73343224204
oct1035662171
9326244273
10142042233
11731a7483
123b6a0449
1323573a78
1414c1693b
15c70b8c3
hex8776479

142042233 has 16 divisors (see below), whose sum is σ = 199891520. Its totient is φ = 89470656.

The previous prime is 142042207. The next prime is 142042247. The reversal of 142042233 is 332240241.

It is not a de Polignac number, because 142042233 - 212 = 142038137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142042283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19491 + ... + 25767.

It is an arithmetic number, because the mean of its divisors is an integer number (12493220).

Almost surely, 2142042233 is an apocalyptic number.

It is an amenable number.

142042233 is a deficient number, since it is larger than the sum of its proper divisors (57849287).

142042233 is a wasteful number, since it uses less digits than its factorization.

142042233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6696.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 142042233 is about 11918.1472133885. The cubic root of 142042233 is about 521.7620610806.

Adding to 142042233 its reverse (332240241), we get a palindrome (474282474).

It can be divided in two parts, 1420422 and 33, that added together give a triangular number (1420455 = T1685).

The spelling of 142042233 in words is "one hundred forty-two million, forty-two thousand, two hundred thirty-three".

Divisors: 1 3 19 57 397 1191 6277 7543 18831 22629 119263 357789 2491969 7475907 47347411 142042233