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10231 = 13787
BaseRepresentation
bin10011111110111
3112000221
42133313
5311411
6115211
741554
oct23767
915027
1010231
117761
125b07
134870
143a2b
153071
hex27f7

10231 has 4 divisors (see below), whose sum is σ = 11032. Its totient is φ = 9432.

The previous prime is 10223. The next prime is 10243. The reversal of 10231 is 13201.

Adding to 10231 its reverse (13201), we get a palindrome (23432).

It can be divided in two parts, 1023 and 1, that added together give a 10-th power (1024 = 210).

10231 = T33 + T34 + ... + T45.

10231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13201 = 43307.

It is a cyclic number.

It is not a de Polignac number, because 10231 - 23 = 10223 is a prime.

It is a super-2 number, since 2×102312 = 209346722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211) 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, 381 + ... + 406.

It is an arithmetic number, because the mean of its divisors is an integer number (2758).

210231 is an apocalyptic number.

10231 is a deficient number, since it is larger than the sum of its proper divisors (801).

10231 is an equidigital number, since it uses as much as digits as its factorization.

10231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 10231 is about 101.1484058204. The cubic root of 10231 is about 21.7089771517.

The spelling of 10231 in words is "ten thousand, two hundred thirty-one".

Divisors: 1 13 787 10231