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10142287 = 23617229
BaseRepresentation
bin100110101100…
…001001001111
3201002021121021
4212230021033
510044023122
61001215011
7152131231
oct46541117
921067537
1010142287
1157a8061
123491467
13214156c
1414c0251
15d551c7
hex9ac24f

10142287 has 8 divisors (see below), whose sum is σ = 10758240. Its totient is φ = 9540960.

The previous prime is 10142273. The next prime is 10142299. The reversal of 10142287 is 78224101.

It is a happy number.

10142287 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10142287 - 211 = 10140239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10142207) 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, 2212 + ... + 5017.

It is an arithmetic number, because the mean of its divisors is an integer number (1344780).

Almost surely, 210142287 is an apocalyptic number.

10142287 is a deficient number, since it is larger than the sum of its proper divisors (615953).

10142287 is an equidigital number, since it uses as much as digits as its factorization.

10142287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7313.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 10142287 is about 3184.6957468493. The cubic root of 10142287 is about 216.4604873604.

Adding to 10142287 its reverse (78224101), we get a palindrome (88366388).

The spelling of 10142287 in words is "ten million, one hundred forty-two thousand, two hundred eighty-seven".

Divisors: 1 23 61 1403 7229 166267 440969 10142287