Search a number
-
+
29212047 = 3223141121
BaseRepresentation
bin110111101101…
…1110110001111
32000222010101200
41233123312033
524434241142
62522040543
7503204214
oct157336617
960863350
1029212047
1115542497
129949153
13608a447
143c45b0b
15287064c
hex1bdbd8f

29212047 has 12 divisors (see below), whose sum is σ = 44030064. Its totient is φ = 18627840.

The previous prime is 29212039. The next prime is 29212061. The reversal of 29212047 is 74021292.

It is not a de Polignac number, because 29212047 - 23 = 29212039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29212047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29212037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70354 + ... + 70767.

It is an arithmetic number, because the mean of its divisors is an integer number (3669172).

Almost surely, 229212047 is an apocalyptic number.

29212047 is a deficient number, since it is larger than the sum of its proper divisors (14818017).

29212047 is a wasteful number, since it uses less digits than its factorization.

29212047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141150 (or 141147 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 29212047 is about 5404.8170181792. The cubic root of 29212047 is about 307.9786873148.

The spelling of 29212047 in words is "twenty-nine million, two hundred twelve thousand, forty-seven".

Divisors: 1 3 9 23 69 207 141121 423363 1270089 3245783 9737349 29212047