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29934409 = 291032221
BaseRepresentation
bin111001000110…
…0001101001001
32002022211021211
41302030031021
530130400114
62545333121
7512303221
oct162141511
962284254
1029934409
111599618a
12a0371a1
13628118b
143d93081
1529646c4
hex1c8c349

29934409 has 4 divisors (see below), whose sum is σ = 30966660. Its totient is φ = 28902160.

The previous prime is 29934379. The next prime is 29934413. The reversal of 29934409 is 90443992.

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 19713600 + 10220809 = 4440^2 + 3197^2 .

It is a cyclic number.

It is not a de Polignac number, because 29934409 - 217 = 29803337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29934419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516082 + ... + 516139.

It is an arithmetic number, because the mean of its divisors is an integer number (7741665).

Almost surely, 229934409 is an apocalyptic number.

29934409 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

29934409 is a deficient number, since it is larger than the sum of its proper divisors (1032251).

29934409 is a wasteful number, since it uses less digits than its factorization.

29934409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032250.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 29934409 is about 5471.2346869788. The cubic root of 29934409 is about 310.4966337066.

The spelling of 29934409 in words is "twenty-nine million, nine hundred thirty-four thousand, four hundred nine".

Divisors: 1 29 1032221 29934409