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13242023 = 88714929
BaseRepresentation
bin110010100000…
…111010100111
3220220202122022
4302200322213
511342221043
61151453355
7220361324
oct62407247
926822568
1013242023
117524a23
12452725b
132988422
141a89b4b
151268868
hexca0ea7

13242023 has 4 divisors (see below), whose sum is σ = 13257840. Its totient is φ = 13226208.

The previous prime is 13242013. The next prime is 13242029. The reversal of 13242023 is 32024231.

13242023 is digitally balanced in base 2, 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: 32024231 = 151212081.

It is a cyclic number.

It is not a de Polignac number, because 13242023 - 216 = 13176487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13241992 and 13242010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13242029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6578 + ... + 8351.

It is an arithmetic number, because the mean of its divisors is an integer number (3314460).

Almost surely, 213242023 is an apocalyptic number.

13242023 is a deficient number, since it is larger than the sum of its proper divisors (15817).

13242023 is an equidigital number, since it uses as much as digits as its factorization.

13242023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15816.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13242023 is about 3638.9590544550. The cubic root of 13242023 is about 236.5836780598.

Adding to 13242023 its reverse (32024231), we get a palindrome (45266254).

The spelling of 13242023 in words is "thirteen million, two hundred forty-two thousand, twenty-three".

Divisors: 1 887 14929 13242023