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13142423 = 729101641
BaseRepresentation
bin110010001000…
…100110010111
3220201201000102
4302020212113
511331024143
61145404315
7216465050
oct62104627
926651012
1013142423
117467108
12449969b
132951ca8
141a61727
1512490b8
hexc88997

13142423 has 16 divisors (see below), whose sum is σ = 15716160. Its totient is φ = 10752000.

The previous prime is 13142417. The next prime is 13142431. The reversal of 13142423 is 32424131.

It is not a de Polignac number, because 13142423 - 210 = 13141399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13142395 and 13142404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13142413) 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 15 ways as a sum of consecutive naturals, for example, 20183 + ... + 20823.

It is an arithmetic number, because the mean of its divisors is an integer number (982260).

Almost surely, 213142423 is an apocalyptic number.

13142423 is a deficient number, since it is larger than the sum of its proper divisors (2573737).

13142423 is a wasteful number, since it uses less digits than its factorization.

13142423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778.

The product of its digits is 576, while the sum is 20.

The square root of 13142423 is about 3625.2479915173. The cubic root of 13142423 is about 235.9890292229.

Adding to 13142423 its reverse (32424131), we get a palindrome (45566554).

The spelling of 13142423 in words is "thirteen million, one hundred forty-two thousand, four hundred twenty-three".

Divisors: 1 7 29 101 203 641 707 2929 4487 18589 20503 64741 130123 453187 1877489 13142423