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142042103 = 7711811579
BaseRepresentation
bin10000111011101…
…10001111110111
3100220021111010122
420131312033313
5242330321403
622032242155
73343223630
oct1035661767
9326244118
10142042103
11731a7375
123b6a035b
13235739a8
1414c16887
15c70b838
hex87763f7

142042103 has 16 divisors (see below), whose sum is σ = 165634560. Its totient is φ = 119296800.

The previous prime is 142042091. The next prime is 142042111. The reversal of 142042103 is 301240241.

It is not a de Polignac number, because 142042103 - 218 = 141779959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142042193) 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, 89168 + ... + 90746.

It is an arithmetic number, because the mean of its divisors is an integer number (10352160).

Almost surely, 2142042103 is an apocalyptic number.

142042103 is a deficient number, since it is larger than the sum of its proper divisors (23592457).

142042103 is a wasteful number, since it uses less digits than its factorization.

142042103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142042103 is about 11918.1417595194. The cubic root of 142042103 is about 521.7619019048.

Adding to 142042103 its reverse (301240241), we get a palindrome (443282344).

The spelling of 142042103 in words is "one hundred forty-two million, forty-two thousand, one hundred three".

Divisors: 1 7 71 181 497 1267 1579 11053 12851 89957 112109 285799 784763 2000593 20291729 142042103