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142430508 = 223311119891
BaseRepresentation
bin10000111110101…
…01000100101100
3100221000012221000
420133111010230
5242430234013
622044440300
73346432203
oct1037250454
9327005830
10142430508
1173442170
123b849090
132367b70c
1414cb823a
15c786973
hex87d512c

142430508 has 48 divisors (see below), whose sum is σ = 402837120. Its totient is φ = 43160400.

The previous prime is 142430507. The next prime is 142430531. The reversal of 142430508 is 805034241.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (142430507) 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 15 ways as a sum of consecutive naturals, for example, 58758 + ... + 61133.

It is an arithmetic number, because the mean of its divisors is an integer number (8392440).

Almost surely, 2142430508 is an apocalyptic number.

142430508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

142430508 is an abundant number, since it is smaller than the sum of its proper divisors (260406612).

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

142430508 is a wasteful number, since it uses less digits than its factorization.

142430508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119915 (or 119907 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 142430508 is about 11934.4253317870. The cubic root of 142430508 is about 522.2370438796.

Adding to 142430508 its reverse (805034241), we get a palindrome (947464749).

The spelling of 142430508 in words is "one hundred forty-two million, four hundred thirty thousand, five hundred eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 132 198 297 396 594 1188 119891 239782 359673 479564 719346 1079019 1318801 1438692 2158038 2637602 3237057 3956403 4316076 5275204 6474114 7912806 11869209 12948228 15825612 23738418 35607627 47476836 71215254 142430508