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10142331 = 33380777
BaseRepresentation
bin100110101100…
…001001111011
3201002021122220
4212230021323
510044023311
61001215123
7152131323
oct46541173
921067586
1010142331
1157a80a1
1234914a3
1321415a4
1414c0283
15d55206
hex9ac27b

10142331 has 4 divisors (see below), whose sum is σ = 13523112. Its totient is φ = 6761552.

The previous prime is 10142323. The next prime is 10142369. The reversal of 10142331 is 13324101.

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 10142331 - 23 = 10142323 is a prime.

It is a super-2 number, since 2×101423312 = 205733756227122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10142331.

It is not an unprimeable number, because it can be changed into a prime (10142381) 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, 1690386 + ... + 1690391.

It is an arithmetic number, because the mean of its divisors is an integer number (3380778).

Almost surely, 210142331 is an apocalyptic number.

10142331 is a deficient number, since it is larger than the sum of its proper divisors (3380781).

10142331 is an equidigital number, since it uses as much as digits as its factorization.

10142331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380780.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 10142331 is about 3184.7026548800. The cubic root of 10142331 is about 216.4608003814.

Adding to 10142331 its reverse (13324101), we get a palindrome (23466432).

The spelling of 10142331 in words is "ten million, one hundred forty-two thousand, three hundred thirty-one".

Divisors: 1 3 3380777 10142331