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29807047 is a prime number
BaseRepresentation
bin111000110110…
…1000111000111
32002002100120201
41301231013013
530112311142
62542511331
7511233004
oct161550707
962070521
1029807047
1115909526
129b95547
13623820a
143d5c8ab
15293bab7
hex1c6d1c7

29807047 has 2 divisors, whose sum is σ = 29807048. Its totient is φ = 29807046.

The previous prime is 29807023. The next prime is 29807053. The reversal of 29807047 is 74070892.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29807047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29806997 and 29807015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29807017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14903523 + 14903524.

It is an arithmetic number, because the mean of its divisors is an integer number (14903524).

Almost surely, 229807047 is an apocalyptic number.

29807047 is a deficient number, since it is larger than the sum of its proper divisors (1).

29807047 is an equidigital number, since it uses as much as digits as its factorization.

29807047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 29807047 is about 5459.5830426874. The cubic root of 29807047 is about 310.0556507791.

The spelling of 29807047 in words is "twenty-nine million, eight hundred seven thousand, forty-seven".