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142412732 = 227114310753
BaseRepresentation
bin10000111110100…
…00101110111100
3100220222022112122
420133100232330
5242424201412
622044222112
73346326320
oct1037205674
9326868478
10142412732
117342a880
123b83a938
13236735b7
1414cb1980
15c781572
hex87d0bbc

142412732 has 48 divisors (see below), whose sum is σ = 317974272. Its totient is φ = 54190080.

The previous prime is 142412731. The next prime is 142412759. The reversal of 142412732 is 237214241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142412731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7868 + ... + 18620.

It is an arithmetic number, because the mean of its divisors is an integer number (6624464).

Almost surely, 2142412732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142412732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158987136).

142412732 is an abundant number, since it is smaller than the sum of its proper divisors (175561540).

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

142412732 is a wasteful number, since it uses less digits than its factorization.

142412732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10818 (or 10816 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 142412732 is about 11933.6805722292. The cubic root of 142412732 is about 522.2153170926.

Adding to 142412732 its reverse (237214241), we get a palindrome (379626973).

The spelling of 142412732 in words is "one hundred forty-two million, four hundred twelve thousand, seven hundred thirty-two".

Divisors: 1 2 4 7 11 14 22 28 43 44 77 86 154 172 301 308 473 602 946 1204 1892 3311 6622 10753 13244 21506 43012 75271 118283 150542 236566 301084 462379 473132 827981 924758 1655962 1849516 3236653 3311924 5086169 6473306 10172338 12946612 20344676 35603183 71206366 142412732