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142432030242 = 232193389105397
BaseRepresentation
bin1000010010100110011…
…1000100111000100010
3111121122022222211001100
42010221213010320202
54313200044431432
6145233220415230
713201412165325
oct2045147047042
9447568884040
10142432030242
1155450193497
1223730247516
131057b6b3a48
146c726287bc
153a894c307c
hex21299c4e22

142432030242 has 48 divisors (see below), whose sum is σ = 311002094520. Its totient is φ = 47109482496.

The previous prime is 142432030177. The next prime is 142432030249. The reversal of 142432030242 is 242030234241.

142432030242 is a `hidden beast` number, since 14 + 24 + 320 + 302 + 4 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 67553727921 + 74878302321 = 259911^2 + 273639^2 .

It is not an unprimeable number, because it can be changed into a prime (142432030249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1298688 + ... + 1404084.

Almost surely, 2142432030242 is an apocalyptic number.

142432030242 is an abundant number, since it is smaller than the sum of its proper divisors (168570064278).

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

142432030242 is a wasteful number, since it uses less digits than its factorization.

142432030242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105987 (or 105984 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 142432030242 its reverse (242030234241), we get a palindrome (384462264483).

The spelling of 142432030242 in words is "one hundred forty-two billion, four hundred thirty-two million, thirty thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 193 386 389 579 778 1158 1167 1737 2334 3474 3501 7002 75077 105397 150154 210794 225231 316191 450462 632382 675693 948573 1351386 1897146 20341621 40683242 40999433 61024863 81998866 122049726 122998299 183074589 245996598 366149178 368994897 737989794 7912890569 15825781138 23738671707 47477343414 71216015121 142432030242