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30396893 is a prime number
BaseRepresentation
bin111001111110…
…1000111011101
32010012022200212
41303331013131
530240200033
63003302205
7516240452
oct163750735
963168625
1030396893
11161816aa
12a21a965
1363b3837
144073829
152a06748
hex1cfd1dd

30396893 has 2 divisors, whose sum is σ = 30396894. Its totient is φ = 30396892.

The previous prime is 30396811. The next prime is 30396911. The reversal of 30396893 is 39869303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30052324 + 344569 = 5482^2 + 587^2 .

It is a cyclic number.

It is not a de Polignac number, because 30396893 - 214 = 30380509 is a prime.

It is a super-2 number, since 2×303968932 = 1847942208106898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30396893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30396803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15198446 + 15198447.

It is an arithmetic number, because the mean of its divisors is an integer number (15198447).

Almost surely, 230396893 is an apocalyptic number.

It is an amenable number.

30396893 is a deficient number, since it is larger than the sum of its proper divisors (1).

30396893 is an equidigital number, since it uses as much as digits as its factorization.

30396893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 30396893 is about 5513.3377367979. The cubic root of 30396893 is about 312.0875172250.

The spelling of 30396893 in words is "thirty million, three hundred ninety-six thousand, eight hundred ninety-three".