Search a number
-
+
29690271 = 3213253763
BaseRepresentation
bin111000101000…
…0100110011111
32001212102101200
41301100212133
530100042041
62540210543
7510235362
oct161204637
961772350
1029690271
1115839816
129b39a53
1361c7010
143d2c0d9
1529171b6
hex1c5099f

29690271 has 12 divisors (see below), whose sum is σ = 46185048. Its totient is φ = 18270864.

The previous prime is 29690257. The next prime is 29690291. The reversal of 29690271 is 17209692.

It is not a de Polignac number, because 29690271 - 25 = 29690239 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29690231) 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 11 ways as a sum of consecutive naturals, for example, 126765 + ... + 126998.

It is an arithmetic number, because the mean of its divisors is an integer number (3848754).

Almost surely, 229690271 is an apocalyptic number.

29690271 is a deficient number, since it is larger than the sum of its proper divisors (16494777).

29690271 is a wasteful number, since it uses less digits than its factorization.

29690271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253782 (or 253779 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 29690271 is about 5448.8779578919. The cubic root of 29690271 is about 309.6502159498.

The spelling of 29690271 in words is "twenty-nine million, six hundred ninety thousand, two hundred seventy-one".

Divisors: 1 3 9 13 39 117 253763 761289 2283867 3298919 9896757 29690271