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142875854 = 21117382021
BaseRepresentation
bin10001000010000…
…01110011001110
3100221211211211022
420201001303032
5243034011404
622102154142
73353265452
oct1041016316
9327754738
10142875854
1173716820
123ba22952
13237a6334
1414d92662
15c8238be
hex8841cce

142875854 has 16 divisors (see below), whose sum is σ = 247550256. Its totient is φ = 61123200.

The previous prime is 142875829. The next prime is 142875893. The reversal of 142875854 is 458578241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 190637 + ... + 191384.

It is an arithmetic number, because the mean of its divisors is an integer number (15471891).

Almost surely, 2142875854 is an apocalyptic number.

142875854 is a deficient number, since it is larger than the sum of its proper divisors (104674402).

142875854 is a wasteful number, since it uses less digits than its factorization.

142875854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382051.

The product of its digits is 358400, while the sum is 44.

The square root of 142875854 is about 11953.0688109790. The cubic root of 142875854 is about 522.7807808423.

The spelling of 142875854 in words is "one hundred forty-two million, eight hundred seventy-five thousand, eight hundred fifty-four".

Divisors: 1 2 11 17 22 34 187 374 382021 764042 4202231 6494357 8404462 12988714 71437927 142875854