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29765081 is a prime number
BaseRepresentation
bin111000110001…
…0110111011001
32002000020000102
41301202313121
530104440311
62541545145
7510666443
oct161426731
962006012
1029765081
111588aa45
129b751b5
136222098
143d4b493
15292e43b
hex1c62dd9

29765081 has 2 divisors, whose sum is σ = 29765082. Its totient is φ = 29765080.

The previous prime is 29765069. The next prime is 29765083. The reversal of 29765081 is 18056792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23088025 + 6677056 = 4805^2 + 2584^2 .

It is a cyclic number.

It is not a de Polignac number, because 29765081 - 26 = 29765017 is a prime.

It is a super-2 number, since 2×297650812 = 1771920093873122, which contains 22 as substring.

Together with 29765083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29765083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14882540 + 14882541.

It is an arithmetic number, because the mean of its divisors is an integer number (14882541).

Almost surely, 229765081 is an apocalyptic number.

It is an amenable number.

29765081 is a deficient number, since it is larger than the sum of its proper divisors (1).

29765081 is an equidigital number, since it uses as much as digits as its factorization.

29765081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 29765081 is about 5455.7383551633. The cubic root of 29765081 is about 309.9100710358.

The spelling of 29765081 in words is "twenty-nine million, seven hundred sixty-five thousand, eighty-one".