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142424156 = 22721124107
BaseRepresentation
bin10000111110100…
…11100001011100
3100220222220012202
420133103201130
5242430033111
622044351032
73346404530
oct1037234134
9326886182
10142424156
1173438416
123b845478
1323678864
1414cb5bc0
15c784b3b
hex87d385c

142424156 has 24 divisors (see below), whose sum is σ = 286210176. Its totient is φ = 60747120.

The previous prime is 142424141. The next prime is 142424159. The reversal of 142424156 is 651424241.

142424156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142424159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6146 + ... + 17961.

It is an arithmetic number, because the mean of its divisors is an integer number (11925424).

Almost surely, 2142424156 is an apocalyptic number.

It is an amenable number.

142424156 is an abundant number, since it is smaller than the sum of its proper divisors (143786020).

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

142424156 is a wasteful number, since it uses less digits than its factorization.

142424156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24329 (or 24327 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 142424156 is about 11934.1592079208. The cubic root of 142424156 is about 522.2292803298.

Adding to 142424156 its reverse (651424241), we get a palindrome (793848397).

The spelling of 142424156 in words is "one hundred forty-two million, four hundred twenty-four thousand, one hundred fifty-six".

Divisors: 1 2 4 7 14 28 211 422 844 1477 2954 5908 24107 48214 96428 168749 337498 674996 5086577 10173154 20346308 35606039 71212078 142424156