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142242606 = 232116111777
BaseRepresentation
bin10000111101001…
…11001100101110
3100220122200011200
420132213030232
5242403230411
622040430330
73345020322
oct1036471456
9326580150
10142242606
1173323a80
123b7783a6
132361402c
1414c69982
15c74ae56
hex87a732e

142242606 has 48 divisors (see below), whose sum is σ = 341750448. Its totient is φ = 42393600.

The previous prime is 142242599. The next prime is 142242623. The reversal of 142242606 is 606242241.

142242606 is a `hidden beast` number, since 14 + 2 + 2 + 42 + 606 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142242606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6190 + ... + 17966.

It is an arithmetic number, because the mean of its divisors is an integer number (7119801).

Almost surely, 2142242606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142242606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170875224).

142242606 is an abundant number, since it is smaller than the sum of its proper divisors (199507842).

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

142242606 is a wasteful number, since it uses less digits than its factorization.

142242606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11857 (or 11854 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 142242606 is about 11926.5504652435. The cubic root of 142242606 is about 522.0072883996.

Adding to 142242606 its reverse (606242241), we get a palindrome (748484847).

The spelling of 142242606 in words is "one hundred forty-two million, two hundred forty-two thousand, six hundred six".

Divisors: 1 2 3 6 9 11 18 22 33 61 66 99 122 183 198 366 549 671 1098 1342 2013 4026 6039 11777 12078 23554 35331 70662 105993 129547 211986 259094 388641 718397 777282 1165923 1436794 2155191 2331846 4310382 6465573 7902367 12931146 15804734 23707101 47414202 71121303 142242606