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10240231 = 37276763
BaseRepresentation
bin100111000100…
…000011100111
3201021020221211
4213010003213
510110141411
61003252251
7153016621
oct47040347
921236854
1010240231
115864701
12351a087
132177011
141507c11
15d74221
hex9c40e7

10240231 has 4 divisors (see below), whose sum is σ = 10517032. Its totient is φ = 9963432.

The previous prime is 10240229. The next prime is 10240301. The reversal of 10240231 is 13204201.

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 10240231 - 21 = 10240229 is a prime.

It is a super-2 number, since 2×102402312 = 209724661866722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10240211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138345 + ... + 138418.

It is an arithmetic number, because the mean of its divisors is an integer number (2629258).

Almost surely, 210240231 is an apocalyptic number.

10240231 is a deficient number, since it is larger than the sum of its proper divisors (276801).

10240231 is an equidigital number, since it uses as much as digits as its factorization.

10240231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276800.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 10240231 is about 3200.0360935464. The cubic root of 10240231 is about 217.1550422072.

Adding to 10240231 its reverse (13204201), we get a palindrome (23444432).

The spelling of 10240231 in words is "ten million, two hundred forty thousand, two hundred thirty-one".

Divisors: 1 37 276763 10240231