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142500227 = 169983873
BaseRepresentation
bin10000111111001…
…10000110000011
3100221010202120012
420133212012003
5242440001402
622050135135
73350142362
oct1037460603
9327122505
10142500227
117348a591
123b8814ab
13236a437c
1414cd57d9
15c79c452
hex87e6183

142500227 has 4 divisors (see below), whose sum is σ = 142585800. Its totient is φ = 142414656.

The previous prime is 142500221. The next prime is 142500251. The reversal of 142500227 is 722005241.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 142500227 - 212 = 142496131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142500221) 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 3 ways as a sum of consecutive naturals, for example, 40238 + ... + 43635.

It is an arithmetic number, because the mean of its divisors is an integer number (35646450).

Almost surely, 2142500227 is an apocalyptic number.

142500227 is a deficient number, since it is larger than the sum of its proper divisors (85573).

142500227 is an equidigital number, since it uses as much as digits as its factorization.

142500227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85572.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 142500227 is about 11937.3458942933. The cubic root of 142500227 is about 522.3222407609.

Adding to 142500227 its reverse (722005241), we get a palindrome (864505468).

The spelling of 142500227 in words is "one hundred forty-two million, five hundred thousand, two hundred twenty-seven".

Divisors: 1 1699 83873 142500227