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13242503 = 231813181
BaseRepresentation
bin110010100001…
…000010000111
3220220210022002
4302201002013
511342230003
61151455515
7220362611
oct62410207
926823262
1013242503
11752531a
12452759b
132988701
141a89db1
151268a88
hexca1087

13242503 has 8 divisors (see below), whose sum is σ = 13898976. Its totient is φ = 12592800.

The previous prime is 13242497. The next prime is 13242511. The reversal of 13242503 is 30524231.

It is a happy number.

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 13242503 - 210 = 13241479 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 (13248503) 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, 2573 + ... + 5753.

It is an arithmetic number, because the mean of its divisors is an integer number (1737372).

Almost surely, 213242503 is an apocalyptic number.

13242503 is a deficient number, since it is larger than the sum of its proper divisors (656473).

13242503 is a wasteful number, since it uses less digits than its factorization.

13242503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13242503 is about 3639.0250067841. The cubic root of 13242503 is about 236.5865366058.

Adding to 13242503 its reverse (30524231), we get a palindrome (43766734).

The spelling of 13242503 in words is "thirteen million, two hundred forty-two thousand, five hundred three".

Divisors: 1 23 181 3181 4163 73163 575761 13242503