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29489641 = 215313697
BaseRepresentation
bin111000001111…
…1100111101001
32001111020011221
41300133213221
530022132031
62532022041
7505441426
oct160374751
961436157
1029489641
1115712005
129a61921
1361568bc
143cb8d4d
1528c7a11
hex1c1f9e9

29489641 has 4 divisors (see below), whose sum is σ = 29505492. Its totient is φ = 29473792.

The previous prime is 29489627. The next prime is 29489659. The reversal of 29489641 is 14698492.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1357225 + 28132416 = 1165^2 + 5304^2 .

It is a cyclic number.

It is not a de Polignac number, because 29489641 - 25 = 29489609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29489671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4696 + ... + 9001.

It is an arithmetic number, because the mean of its divisors is an integer number (7376373).

Almost surely, 229489641 is an apocalyptic number.

It is an amenable number.

29489641 is a deficient number, since it is larger than the sum of its proper divisors (15851).

29489641 is a wasteful number, since it uses less digits than its factorization.

29489641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15850.

The product of its digits is 124416, while the sum is 43.

The square root of 29489641 is about 5430.4365386219. The cubic root of 29489641 is about 308.9511588302.

The spelling of 29489641 in words is "twenty-nine million, four hundred eighty-nine thousand, six hundred forty-one".

Divisors: 1 2153 13697 29489641