Search a number
-
+
29211013 = 1314992
BaseRepresentation
bin110111101101…
…1100110000101
32000222001222101
41233123212011
524434223023
62522032101
7503201206
oct157334605
960861871
1029211013
1115541737
129948631
136089b30
143c455ad
1528701ad
hex1bdb985

29211013 has 6 divisors (see below), whose sum is σ = 31479014. Its totient is φ = 26946024.

The previous prime is 29210969. The next prime is 29211029. The reversal of 29211013 is 31011292.

It can be written as a sum of positive squares in only one way, i.e., 20223009 + 8988004 = 4497^2 + 2998^2 .

It is a de Polignac number, because none of the positive numbers 2k-29211013 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 (29211043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18738 + ... + 20236.

Almost surely, 229211013 is an apocalyptic number.

It is an amenable number.

29211013 is a deficient number, since it is larger than the sum of its proper divisors (2268001).

29211013 is an frugal number, since it uses more digits than its factorization.

29211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011 (or 1512 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 29211013 is about 5404.7213619205. The cubic root of 29211013 is about 307.9750534976.

The spelling of 29211013 in words is "twenty-nine million, two hundred eleven thousand, thirteen".

Divisors: 1 13 1499 19487 2247001 29211013