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142250242 = 271125121
BaseRepresentation
bin10000111101010…
…01000100000010
3100220200001122111
420132221010002
5242404001432
622040525534
73345051511
oct1036510402
9326601574
10142250242
1173329792
123b7808aa
1323617654
1414c6c678
15c74d347
hex87a9102

142250242 has 4 divisors (see below), whose sum is σ = 213375366. Its totient is φ = 71125120.

The previous prime is 142250219. The next prime is 142250243. The reversal of 142250242 is 242052241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 101787921 + 40462321 = 10089^2 + 6361^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (142250243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35562559 + ... + 35562562.

Almost surely, 2142250242 is an apocalyptic number.

142250242 is a deficient number, since it is larger than the sum of its proper divisors (71125124).

142250242 is an equidigital number, since it uses as much as digits as its factorization.

142250242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71125123.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 142250242 is about 11926.8705870400. The cubic root of 142250242 is about 522.0166291928.

The spelling of 142250242 in words is "one hundred forty-two million, two hundred fifty thousand, two hundred forty-two".

Divisors: 1 2 71125121 142250242