Search a number
-
+
29475247 is a prime number
BaseRepresentation
bin111000001110…
…0000110101111
32001110111102211
41300130012233
530021201442
62531431251
7505351444
oct160340657
961414384
1029475247
111570220a
129a55527
136150199
143cb39cb
1528c3617
hex1c1c1af

29475247 has 2 divisors, whose sum is σ = 29475248. Its totient is φ = 29475246.

The previous prime is 29475239. The next prime is 29475301. The reversal of 29475247 is 74257492.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29475247 - 23 = 29475239 is a prime.

It is a super-2 number, since 2×294752472 = 1737580371422018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29475217) 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 as a sum of consecutive naturals, namely, 14737623 + 14737624.

It is an arithmetic number, because the mean of its divisors is an integer number (14737624).

Almost surely, 229475247 is an apocalyptic number.

29475247 is a deficient number, since it is larger than the sum of its proper divisors (1).

29475247 is an equidigital number, since it uses as much as digits as its factorization.

29475247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

The square root of 29475247 is about 5429.1110690425. Note that the first 3 decimals coincide. The cubic root of 29475247 is about 308.9008839250.

The spelling of 29475247 in words is "twenty-nine million, four hundred seventy-five thousand, two hundred forty-seven".