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142220050 = 2527258049
BaseRepresentation
bin10000111101000…
…01101100010010
3100220121112020021
420132201230102
5242402020200
622040134054
73344564500
oct1036415422
9326545207
10142220050
1173309035
123b76732a
132360699b
1414c61670
15c74441a
hex87a1b12

142220050 has 36 divisors (see below), whose sum is σ = 307723050. Its totient is φ = 48760320.

The previous prime is 142220047. The next prime is 142220059. The reversal of 142220050 is 50022241.

142220050 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 119093569 + 23126481 = 10913^2 + 4809^2 .

It is not an unprimeable number, because it can be changed into a prime (142220059) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26575 + ... + 31474.

Almost surely, 2142220050 is an apocalyptic number.

142220050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142220050 is an abundant number, since it is smaller than the sum of its proper divisors (165503000).

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

142220050 is a wasteful number, since it uses less digits than its factorization.

142220050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58075 (or 58063 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 142220050 is about 11925.6048064658. The cubic root of 142220050 is about 521.9796946540.

Adding to 142220050 its reverse (50022241), we get a palindrome (192242291).

The spelling of 142220050 in words is "one hundred forty-two million, two hundred twenty thousand, fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 175 245 350 490 1225 2450 58049 116098 290245 406343 580490 812686 1451225 2031715 2844401 2902450 4063430 5688802 10158575 14222005 20317150 28444010 71110025 142220050