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13143422 = 26571711
BaseRepresentation
bin110010001000…
…110101111110
3220201202101102
4302020311332
511331042142
61145413102
7216501005
oct62106576
926652342
1013143422
117467936
12449a192
132952596
141a61c3c
151249532
hexc88d7e

13143422 has 4 divisors (see below), whose sum is σ = 19715136. Its totient is φ = 6571710.

The previous prime is 13143407. The next prime is 13143443. The reversal of 13143422 is 22434131.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 13143394 and 13143403.

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 as a sum of consecutive naturals, namely, 3285854 + ... + 3285857.

It is an arithmetic number, because the mean of its divisors is an integer number (4928784).

Almost surely, 213143422 is an apocalyptic number.

13143422 is a deficient number, since it is larger than the sum of its proper divisors (6571714).

13143422 is an equidigital number, since it uses as much as digits as its factorization.

13143422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6571713.

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

The square root of 13143422 is about 3625.3857725765. The cubic root of 13143422 is about 235.9950085126.

Adding to 13143422 its reverse (22434131), we get a palindrome (35577553).

The spelling of 13143422 in words is "thirteen million, one hundred forty-three thousand, four hundred twenty-two".

Divisors: 1 2 6571711 13143422