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142234210 = 2514223421
BaseRepresentation
bin10000111101001…
…01001001100010
3100220122020122201
420132211021202
5242402443320
622040323414
73344653666
oct1036451142
9326566581
10142234210
1173318738
123b77356a
1323610271
1414c668a6
15c74870a
hex87a5262

142234210 has 8 divisors (see below), whose sum is σ = 256021596. Its totient is φ = 56893680.

The previous prime is 142234201. The next prime is 142234217. The reversal of 142234210 is 12432241.

It can be written as a sum of positive squares in 2 ways, for example, as 140209281 + 2024929 = 11841^2 + 1423^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (142234217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7111701 + ... + 7111720.

Almost surely, 2142234210 is an apocalyptic number.

142234210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142234210 is a deficient number, since it is larger than the sum of its proper divisors (113787386).

142234210 is a wasteful number, since it uses less digits than its factorization.

142234210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14223428.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142234210 is about 11926.1984722710. The cubic root of 142234210 is about 521.9970175448.

Adding to 142234210 its reverse (12432241), we get a palindrome (154666451).

The spelling of 142234210 in words is "one hundred forty-two million, two hundred thirty-four thousand, two hundred ten".

Divisors: 1 2 5 10 14223421 28446842 71117105 142234210