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13203142 = 28379537
BaseRepresentation
bin110010010111…
…011011000110
3220211210022021
4302113123012
511340000032
61150553354
7220140061
oct62273306
926753267
1013203142
1174a8797
12450885a
132973814
141a798d8
15125c097
hexc976c6

13203142 has 8 divisors (see below), whose sum is σ = 20043576. Its totient is φ = 6521952.

The previous prime is 13203139. The next prime is 13203167. The reversal of 13203142 is 24130231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39603 + ... + 39934.

It is an arithmetic number, because the mean of its divisors is an integer number (2505447).

Almost surely, 213203142 is an apocalyptic number.

13203142 is a deficient number, since it is larger than the sum of its proper divisors (6840434).

13203142 is an equidigital number, since it uses as much as digits as its factorization.

13203142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79622.

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

The square root of 13203142 is about 3633.6128027075. The cubic root of 13203142 is about 236.3519000897.

Adding to 13203142 its reverse (24130231), we get a palindrome (37333373).

The spelling of 13203142 in words is "thirteen million, two hundred three thousand, one hundred forty-two".

Divisors: 1 2 83 166 79537 159074 6601571 13203142