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29489009 = 112680819
BaseRepresentation
bin111000001111…
…1011101110001
32001111012022112
41300133131301
530022122014
62532015105
7505436534
oct160373561
961435275
1029489009
1115711590
129a61495
136156524
143cb8a1b
1528c773e
hex1c1f771

29489009 has 4 divisors (see below), whose sum is σ = 32169840. Its totient is φ = 26808180.

The previous prime is 29488981. The next prime is 29489011. The reversal of 29489009 is 90098492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29489009 - 224 = 12711793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29489039) 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, 1340399 + ... + 1340420.

It is an arithmetic number, because the mean of its divisors is an integer number (8042460).

Almost surely, 229489009 is an apocalyptic number.

It is an amenable number.

29489009 is a deficient number, since it is larger than the sum of its proper divisors (2680831).

29489009 is a wasteful number, since it uses less digits than its factorization.

29489009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680830.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 29489009 is about 5430.3783477765. The cubic root of 29489009 is about 308.9489517441.

The spelling of 29489009 in words is "twenty-nine million, four hundred eighty-nine thousand, nine".

Divisors: 1 11 2680819 29489009