Search a number
-
+
29068991 = 729143197
BaseRepresentation
bin110111011100…
…0111010111111
32000200212011022
41232320322333
524420201431
62515014355
7502040150
oct156707277
960625138
1029068991
1115454a66
12989a3bb
13603a2b3
143c09927
15284307b
hex1bb8ebf

29068991 has 8 divisors (see below), whose sum is σ = 34367520. Its totient is φ = 24056928.

The previous prime is 29068967. The next prime is 29068999. The reversal of 29068991 is 19986092.

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

It is not a de Polignac number, because 29068991 - 222 = 24874687 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 (29068999) 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, 71396 + ... + 71801.

It is an arithmetic number, because the mean of its divisors is an integer number (4295940).

Almost surely, 229068991 is an apocalyptic number.

29068991 is a deficient number, since it is larger than the sum of its proper divisors (5298529).

29068991 is a wasteful number, since it uses less digits than its factorization.

29068991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143233.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 29068991 is about 5391.5666554351. The cubic root of 29068991 is about 307.4751243455.

The spelling of 29068991 in words is "twenty-nine million, sixty-eight thousand, nine hundred ninety-one".

Divisors: 1 7 29 203 143197 1002379 4152713 29068991