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29793481 is a prime number
BaseRepresentation
bin111000110100…
…1110011001001
32002001122222021
41301221303021
530111342411
62542324441
7511145314
oct161516311
962048867
1029793481
11158aa313
129b89721
136231ca3
143d5797b
152937a71
hex1c69cc9

29793481 has 2 divisors, whose sum is σ = 29793482. Its totient is φ = 29793480.

The previous prime is 29793479. The next prime is 29793497. The reversal of 29793481 is 18439792.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25857225 + 3936256 = 5085^2 + 1984^2 .

It is a cyclic number.

It is not a de Polignac number, because 29793481 - 21 = 29793479 is a prime.

It is a super-2 number, since 2×297934812 = 1775303020194722, which contains 22 as substring.

Together with 29793479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (29793581) 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, 14896740 + 14896741.

It is an arithmetic number, because the mean of its divisors is an integer number (14896741).

Almost surely, 229793481 is an apocalyptic number.

It is an amenable number.

29793481 is a deficient number, since it is larger than the sum of its proper divisors (1).

29793481 is an equidigital number, since it uses as much as digits as its factorization.

29793481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 29793481 is about 5458.3404987230. The cubic root of 29793481 is about 310.0086053803.

The spelling of 29793481 in words is "twenty-nine million, seven hundred ninety-three thousand, four hundred eighty-one".