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29068913 = 89326617
BaseRepresentation
bin110111011100…
…0111001110001
32000200212001102
41232320321301
524420201123
62515014145
7502040006
oct156707161
960625042
1029068913
11154549a5
12989a355
13603a253
143c098ad
152843028
hex1bb8e71

29068913 has 4 divisors (see below), whose sum is σ = 29395620. Its totient is φ = 28742208.

The previous prime is 29068901. The next prime is 29068943. The reversal of 29068913 is 31986092.

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 19784704 + 9284209 = 4448^2 + 3047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29068913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29068943) 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, 163220 + ... + 163397.

It is an arithmetic number, because the mean of its divisors is an integer number (7348905).

Almost surely, 229068913 is an apocalyptic number.

It is an amenable number.

29068913 is a deficient number, since it is larger than the sum of its proper divisors (326707).

29068913 is an equidigital number, since it uses as much as digits as its factorization.

29068913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326706.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 29068913 is about 5391.5594219113. The cubic root of 29068913 is about 307.4748493321.

The spelling of 29068913 in words is "twenty-nine million, sixty-eight thousand, nine hundred thirteen".

Divisors: 1 89 326617 29068913