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142930141 = 1941183479
BaseRepresentation
bin10001000010011…
…11000011011101
3100221221121021221
420201033003131
5243042231031
622103253341
73353612644
oct1041170335
9327847257
10142930141
1173753592
123ba4a251
13237c4c63
1414da835b
15c834a11
hex884f0dd

142930141 has 8 divisors (see below), whose sum is σ = 154123200. Its totient is φ = 132104160.

The previous prime is 142930133. The next prime is 142930153. The reversal of 142930141 is 141039241.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 142930141 - 23 = 142930133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142930841) 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 7 ways as a sum of consecutive naturals, for example, 90961 + ... + 92518.

It is an arithmetic number, because the mean of its divisors is an integer number (19265400).

Almost surely, 2142930141 is an apocalyptic number.

It is an amenable number.

142930141 is a deficient number, since it is larger than the sum of its proper divisors (11193059).

142930141 is a wasteful number, since it uses less digits than its factorization.

142930141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183539.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 142930141 is about 11955.3394347463. The cubic root of 142930141 is about 522.8469842531.

Adding to 142930141 its reverse (141039241), we get a palindrome (283969382).

The spelling of 142930141 in words is "one hundred forty-two million, nine hundred thirty thousand, one hundred forty-one".

Divisors: 1 19 41 779 183479 3486101 7522639 142930141