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29501081 is a prime number
BaseRepresentation
bin111000010001…
…0011010011001
32001111210212122
41300202122121
530023013311
62532151025
7505516661
oct160423231
961453778
1029501081
111571a665
129a68475
13615bb7c
143cbd1a1
1528cb0db
hex1c22699

29501081 has 2 divisors, whose sum is σ = 29501082. Its totient is φ = 29501080.

The previous prime is 29501063. The next prime is 29501083. The reversal of 29501081 is 18010592.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20620681 + 8880400 = 4541^2 + 2980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29501081 is a prime.

It is a super-2 number, since 2×295010812 = 1740627560337122, which contains 22 as substring.

Together with 29501083, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29501081.

It is not a weakly prime, because it can be changed into another prime (29501083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14750540 + 14750541.

It is an arithmetic number, because the mean of its divisors is an integer number (14750541).

Almost surely, 229501081 is an apocalyptic number.

It is an amenable number.

29501081 is a deficient number, since it is larger than the sum of its proper divisors (1).

29501081 is an equidigital number, since it uses as much as digits as its factorization.

29501081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 29501081 is about 5431.4897588047. The cubic root of 29501081 is about 308.9911044314.

The spelling of 29501081 in words is "twenty-nine million, five hundred one thousand, eighty-one".