[go: up one dir, main page]

Search a number
-
+
12648703 = 97130399
BaseRepresentation
bin110000010000…
…000011111111
3212210121202111
4300100003333
511214224303
61131034451
7212340454
oct60200377
925717674
1012648703
11715a181
12429ba27
13280b352
14197382b
15119cb6d
hexc100ff

12648703 has 4 divisors (see below), whose sum is σ = 12779200. Its totient is φ = 12518208.

The previous prime is 12648683. The next prime is 12648719. The reversal of 12648703 is 30784621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30784621 = 74397803.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12648703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12648733) 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 3 ways as a sum of consecutive naturals, for example, 65103 + ... + 65296.

It is an arithmetic number, because the mean of its divisors is an integer number (3194800).

Almost surely, 212648703 is an apocalyptic number.

12648703 is a deficient number, since it is larger than the sum of its proper divisors (130497).

12648703 is an equidigital number, since it uses as much as digits as its factorization.

12648703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130496.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 12648703 is about 3556.5015113170. The cubic root of 12648703 is about 232.9961071881.

The spelling of 12648703 in words is "twelve million, six hundred forty-eight thousand, seven hundred three".

Divisors: 1 97 130399 12648703