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13193138 = 27942367
BaseRepresentation
bin110010010100…
…111110110010
3220211021120202
4302110332302
511334140023
61150435202
7220065650
oct62247662
926737522
1013193138
1174a1222
124502b02
13296c0ba
141a75dd0
151259128
hexc94fb2

13193138 has 8 divisors (see below), whose sum is σ = 22616832. Its totient is φ = 5654196.

The previous prime is 13193137. The next prime is 13193143. The reversal of 13193138 is 83139131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13193138.

It is not an unprimeable number, because it can be changed into a prime (13193137) by changing a digit.

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, 471170 + ... + 471197.

It is an arithmetic number, because the mean of its divisors is an integer number (2827104).

Almost surely, 213193138 is an apocalyptic number.

13193138 is a deficient number, since it is larger than the sum of its proper divisors (9423694).

13193138 is an equidigital number, since it uses as much as digits as its factorization.

13193138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942376.

The product of its digits is 1944, while the sum is 29.

The square root of 13193138 is about 3632.2359504856. The cubic root of 13193138 is about 236.2921905184.

It can be divided in two parts, 13193 and 138, that added together give a palindrome (13331).

The spelling of 13193138 in words is "thirteen million, one hundred ninety-three thousand, one hundred thirty-eight".

Divisors: 1 2 7 14 942367 1884734 6596569 13193138