Search a number
-
+
29311243 = 1319118669
BaseRepresentation
bin110111111010…
…0000100001011
32001011011110121
41233310010023
530000424433
62524124111
7504066343
oct157640413
961134417
1029311243
11155aaa75
129996637
1360c3640
143c6dd23
15288ec2d
hex1bf410b

29311243 has 8 divisors (see below), whose sum is σ = 33227600. Its totient is φ = 25632288.

The previous prime is 29311241. The next prime is 29311253. The reversal of 29311243 is 34211392.

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 29311243 - 21 = 29311241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29311241) 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 7 ways as a sum of consecutive naturals, for example, 59088 + ... + 59581.

It is an arithmetic number, because the mean of its divisors is an integer number (4153450).

Almost surely, 229311243 is an apocalyptic number.

29311243 is a deficient number, since it is larger than the sum of its proper divisors (3916357).

29311243 is a wasteful number, since it uses less digits than its factorization.

29311243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118701.

The product of its digits is 1296, while the sum is 25.

The square root of 29311243 is about 5413.9858699483. The cubic root of 29311243 is about 308.3268968383.

The spelling of 29311243 in words is "twenty-nine million, three hundred eleven thousand, two hundred forty-three".

Divisors: 1 13 19 247 118669 1542697 2254711 29311243