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144131142 = 2324021857
BaseRepresentation
bin10001001011101…
…00010001000110
3101001012121202110
420211310101012
5243344144032
622145121450
73400044261
oct1045642106
9331177673
10144131142
11743a3951
1240329286
1323b257cc
14151dbcd8
15c9c07cc
hex8974446

144131142 has 8 divisors (see below), whose sum is σ = 288262296. Its totient is φ = 48043712.

The previous prime is 144131111. The next prime is 144131149. The reversal of 144131142 is 241131441.

It is a sphenic number, since it is the product of 3 distinct primes.

144131142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144131149) 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 3 ways as a sum of consecutive naturals, for example, 12010923 + ... + 12010934.

It is an arithmetic number, because the mean of its divisors is an integer number (36032787).

Almost surely, 2144131142 is an apocalyptic number.

144131142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144131142 is a wasteful number, since it uses less digits than its factorization.

144131142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24021862.

The product of its digits is 384, while the sum is 21.

The square root of 144131142 is about 12005.4630064817. The cubic root of 144131142 is about 524.3073459654.

Adding to 144131142 its reverse (241131441), we get a palindrome (385262583).

The spelling of 144131142 in words is "one hundred forty-four million, one hundred thirty-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 24021857 48043714 72065571 144131142