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142142055 = 35113792273
BaseRepresentation
bin10000111100011…
…10101001100111
3100220110120020120
420132032221213
5242342021210
622034333023
73344121216
oct1036165147
9326416216
10142142055
1173265480
123b72a173
13235aa333
1414c4107d
15c72b270
hex878ea67

142142055 has 32 divisors (see below), whose sum is σ = 248866560. Its totient is φ = 68705280.

The previous prime is 142142029. The next prime is 142142089. The reversal of 142142055 is 550241241.

It is not a de Polignac number, because 142142055 - 27 = 142141927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61399 + ... + 63671.

It is an arithmetic number, because the mean of its divisors is an integer number (7777080).

Almost surely, 2142142055 is an apocalyptic number.

142142055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142142055 is a deficient number, since it is larger than the sum of its proper divisors (106724505).

142142055 is a wasteful number, since it uses less digits than its factorization.

142142055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 142142055 is about 11922.3342932498. The cubic root of 142142055 is about 521.8842574523.

Adding to 142142055 its reverse (550241241), we get a palindrome (692383296).

The spelling of 142142055 in words is "one hundred forty-two million, one hundred forty-two thousand, fifty-five".

Divisors: 1 3 5 11 15 33 55 165 379 1137 1895 2273 4169 5685 6819 11365 12507 20845 25003 34095 62535 75009 125015 375045 861467 2584401 4307335 9476137 12922005 28428411 47380685 142142055