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13042142 = 26521071
BaseRepresentation
bin110001110000…
…000111011110
3220112121110022
4301300013132
511314322032
61143312142
7215566511
oct61600736
926477408
1013042142
1173a8833
12444b652
132918459
141a36d78
151229512
hexc701de

13042142 has 4 divisors (see below), whose sum is σ = 19563216. Its totient is φ = 6521070.

The previous prime is 13042129. The next prime is 13042157. The reversal of 13042142 is 24124031.

13042142 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.

It is a self number, because there is not a number n which added to its sum of digits gives 13042142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3260534 + ... + 3260537.

It is an arithmetic number, because the mean of its divisors is an integer number (4890804).

Almost surely, 213042142 is an apocalyptic number.

13042142 is a deficient number, since it is larger than the sum of its proper divisors (6521074).

13042142 is an equidigital number, since it uses as much as digits as its factorization.

13042142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6521073.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 13042142 is about 3611.3905908943. The cubic root of 13042142 is about 235.3872715049.

Adding to 13042142 its reverse (24124031), we get a palindrome (37166173).

The spelling of 13042142 in words is "thirteen million, forty-two thousand, one hundred forty-two".

Divisors: 1 2 6521071 13042142