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13142203 = 79166357
BaseRepresentation
bin110010001000…
…100010111011
3220201200201021
4302020202323
511331022303
61145403311
7216464314
oct62104273
926650637
1013142203
117466a28
124499537
132951b69
141a6160b
151248ebd
hexc888bb

13142203 has 4 divisors (see below), whose sum is σ = 13308640. Its totient is φ = 12975768.

The previous prime is 13142197. The next prime is 13142231. The reversal of 13142203 is 30224131.

It is a happy number.

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 13142203 - 29 = 13141691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13142603) 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, 83100 + ... + 83257.

It is an arithmetic number, because the mean of its divisors is an integer number (3327160).

Almost surely, 213142203 is an apocalyptic number.

13142203 is a deficient number, since it is larger than the sum of its proper divisors (166437).

13142203 is an equidigital number, since it uses as much as digits as its factorization.

13142203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166436.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13142203 is about 3625.2176486385. The cubic root of 13142203 is about 235.9877124216.

Adding to 13142203 its reverse (30224131), we get a palindrome (43366334).

The spelling of 13142203 in words is "thirteen million, one hundred forty-two thousand, two hundred three".

Divisors: 1 79 166357 13142203