Search a number
-
+
11630143 = 77921031
BaseRepresentation
bin101100010111…
…011000111111
3210212212120001
4230113120333
510434131033
61053135131
7200566060
oct54273077
923785501
1011630143
116623998
123a8a4a7
132542855
14178a567
15104ae7d
hexb1763f

11630143 has 8 divisors (see below), whose sum is σ = 13460480. Its totient is φ = 9842040.

The previous prime is 11630137. The next prime is 11630149. The reversal of 11630143 is 34103611.

It is an interprime number because it is at equal distance from previous prime (11630137) and next prime (11630149).

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

It is a cyclic number.

It is not a de Polignac number, because 11630143 - 217 = 11499071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11630143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11630149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9963 + ... + 11068.

It is an arithmetic number, because the mean of its divisors is an integer number (1682560).

Almost surely, 211630143 is an apocalyptic number.

11630143 is a deficient number, since it is larger than the sum of its proper divisors (1830337).

11630143 is an equidigital number, since it uses as much as digits as its factorization.

11630143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21117.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 11630143 is about 3410.2995469606. The cubic root of 11630143 is about 226.5661465572.

Adding to 11630143 its reverse (34103611), we get a palindrome (45733754).

The spelling of 11630143 in words is "eleven million, six hundred thirty thousand, one hundred forty-three".

Divisors: 1 7 79 553 21031 147217 1661449 11630143