Search a number
-
+
12791324 = 2271335141
BaseRepresentation
bin110000110010…
…111000011100
3220001212101202
4300302320130
511233310244
61134055032
7213503330
oct60627034
926055352
1012791324
117247347
12434a478
13285b240
1419ad7c0
1511ca04e
hexc32e1c

12791324 has 24 divisors (see below), whose sum is σ = 27551328. Its totient is φ = 5060160.

The previous prime is 12791323. The next prime is 12791333. The reversal of 12791324 is 42319721.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12791323) 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 7 ways as a sum of consecutive naturals, for example, 17207 + ... + 17934.

It is an arithmetic number, because the mean of its divisors is an integer number (1147972).

Almost surely, 212791324 is an apocalyptic number.

12791324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12791324 is an abundant number, since it is smaller than the sum of its proper divisors (14760004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12791324 is a wasteful number, since it uses less digits than its factorization.

12791324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35165 (or 35163 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 12791324 is about 3576.4960506060. The cubic root of 12791324 is about 233.8685554907.

The spelling of 12791324 in words is "twelve million, seven hundred ninety-one thousand, three hundred twenty-four".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 35141 70282 140564 245987 456833 491974 913666 983948 1827332 3197831 6395662 12791324