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142108875 = 3253592141
BaseRepresentation
bin10000111100001…
…10100011001011
3100220101212201200
420132012203023
5242334441000
622033515243
73343622406
oct1036064313
9326355650
10142108875
1173242557
123b712b23
13235981bc
1414c32d3d
15c721500
hex87868cb

142108875 has 48 divisors (see below), whose sum is σ = 260638560. Its totient is φ = 74472000.

The previous prime is 142108873. The next prime is 142108907. The reversal of 142108875 is 578801241.

It is not a de Polignac number, because 142108875 - 21 = 142108873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142108873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65305 + ... + 67445.

It is an arithmetic number, because the mean of its divisors is an integer number (5429970).

Almost surely, 2142108875 is an apocalyptic number.

142108875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142108875 is a deficient number, since it is larger than the sum of its proper divisors (118529685).

142108875 is a wasteful number, since it uses less digits than its factorization.

142108875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221 (or 2208 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 142108875 is about 11920.9427060111. The cubic root of 142108875 is about 521.8436467473.

The spelling of 142108875 in words is "one hundred forty-two million, one hundred eight thousand, eight hundred seventy-five".

Divisors: 1 3 5 9 15 25 45 59 75 125 177 225 295 375 531 885 1125 1475 2141 2655 4425 6423 7375 10705 13275 19269 22125 32115 53525 66375 96345 126319 160575 267625 378957 481725 631595 802875 1136871 1894785 2408625 3157975 5684355 9473925 15789875 28421775 47369625 142108875