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29040293 = 230912577
BaseRepresentation
bin110111011000…
…1111010100101
32000122101210102
41232301322211
524413242133
62514233445
7501560402
oct156617245
960571712
1029040293
1115435447
129885885
13602a209
143bdd2a9
1528397e8
hex1bb1ea5

29040293 has 4 divisors (see below), whose sum is σ = 29055180. Its totient is φ = 29025408.

The previous prime is 29040287. The next prime is 29040311. The reversal of 29040293 is 39204092.

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 25573249 + 3467044 = 5057^2 + 1862^2 .

It is a cyclic number.

It is not a de Polignac number, because 29040293 - 212 = 29036197 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 (29040593) 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, 3980 + ... + 8597.

It is an arithmetic number, because the mean of its divisors is an integer number (7263795).

Almost surely, 229040293 is an apocalyptic number.

It is an amenable number.

29040293 is a deficient number, since it is larger than the sum of its proper divisors (14887).

29040293 is a wasteful number, since it uses less digits than its factorization.

29040293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14886.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 29040293 is about 5388.9046196792. The cubic root of 29040293 is about 307.3739073650.

The spelling of 29040293 in words is "twenty-nine million, forty thousand, two hundred ninety-three".

Divisors: 1 2309 12577 29040293