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29313313 = 157186709
BaseRepresentation
bin110111111010…
…0100100100001
32001011021022021
41233310210201
530001011223
62524141441
7504105361
oct157644441
961137267
1029313313
1115601587
129997881
1360c4573
143c709a1
15289065d
hex1bf4921

29313313 has 4 divisors (see below), whose sum is σ = 29500180. Its totient is φ = 29126448.

The previous prime is 29313299. The next prime is 29313329. The reversal of 29313313 is 31331392.

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 17698849 + 11614464 = 4207^2 + 3408^2 .

It is a cyclic number.

It is not a de Polignac number, because 29313313 - 213 = 29305121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29313353) 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 3 ways as a sum of consecutive naturals, for example, 93198 + ... + 93511.

It is an arithmetic number, because the mean of its divisors is an integer number (7375045).

Almost surely, 229313313 is an apocalyptic number.

It is an amenable number.

29313313 is a deficient number, since it is larger than the sum of its proper divisors (186867).

29313313 is a wasteful number, since it uses less digits than its factorization.

29313313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186866.

The product of its digits is 1458, while the sum is 25.

The square root of 29313313 is about 5414.1770381102. The cubic root of 29313313 is about 308.3341548229.

The spelling of 29313313 in words is "twenty-nine million, three hundred thirteen thousand, three hundred thirteen".

Divisors: 1 157 186709 29313313