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142402182 = 2313611732
BaseRepresentation
bin10000111110011…
…10001010000110
3100220221210001220
420133032022012
5242423332212
622044101210
73346253466
oct1037161206
9326853056
10142402182
117342295a
123b834806
132366b860
1414cabba6
15c77d38c
hex87ce286

142402182 has 48 divisors (see below), whose sum is σ = 313552848. Its totient is φ = 42848640.

The previous prime is 142402181. The next prime is 142402199. The reversal of 142402182 is 281204241.

It is a super-2 number, since 2×1424021822 = 40556762876722248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142402181) 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 23 ways as a sum of consecutive naturals, for example, 823048 + ... + 823220.

It is an arithmetic number, because the mean of its divisors is an integer number (6532351).

Almost surely, 2142402182 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142402182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156776424).

142402182 is an abundant number, since it is smaller than the sum of its proper divisors (171150666).

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

142402182 is a wasteful number, since it uses less digits than its factorization.

142402182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 142402182 is about 11933.2385377985. The cubic root of 142402182 is about 522.2024214580.

The spelling of 142402182 in words is "one hundred forty-two million, four hundred two thousand, one hundred eighty-two".

Divisors: 1 2 3 6 13 26 39 61 78 122 173 183 346 366 519 793 1038 1586 2249 2379 4498 4758 6747 10553 13494 21106 29929 31659 59858 63318 89787 137189 179574 274378 389077 411567 778154 823134 1167231 1825669 2334462 3651338 5477007 10954014 23733697 47467394 71201091 142402182