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29805293 = 74257899
BaseRepresentation
bin111000110110…
…0101011101101
32002002021011202
41301230223231
530112232133
62542455245
7511224620
oct161545355
962067152
1029805293
1115908181
129b94525
13623748b
143d5bdb7
15293b2e8
hex1c6caed

29805293 has 4 divisors (see below), whose sum is σ = 34063200. Its totient is φ = 25547388.

The previous prime is 29805289. The next prime is 29805329. The reversal of 29805293 is 39250892.

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 29805293 - 22 = 29805289 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29805283) 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, 2128943 + ... + 2128956.

It is an arithmetic number, because the mean of its divisors is an integer number (8515800).

Almost surely, 229805293 is an apocalyptic number.

It is an amenable number.

29805293 is a deficient number, since it is larger than the sum of its proper divisors (4257907).

29805293 is an equidigital number, since it uses as much as digits as its factorization.

29805293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257906.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 29805293 is about 5459.4224053466. The cubic root of 29805293 is about 310.0495689032.

The spelling of 29805293 in words is "twenty-nine million, eight hundred five thousand, two hundred ninety-three".

Divisors: 1 7 4257899 29805293