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30361937 is a prime number
BaseRepresentation
bin111001111010…
…0100101010001
32010010112202012
41303310211101
530233040222
63002432305
7516033524
oct163644521
963115665
1030361937
1116158411
12a202695
1363a0958
144064bbb
1529eb1e2
hex1cf4951

30361937 has 2 divisors, whose sum is σ = 30361938. Its totient is φ = 30361936.

The previous prime is 30361907. The next prime is 30361973. The reversal of 30361937 is 73916303.

Together with next prime (30361973) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16516096 + 13845841 = 4064^2 + 3721^2 .

It is a cyclic number.

It is not a de Polignac number, because 30361937 - 212 = 30357841 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30361907) 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, 15180968 + 15180969.

It is an arithmetic number, because the mean of its divisors is an integer number (15180969).

Almost surely, 230361937 is an apocalyptic number.

It is an amenable number.

30361937 is a deficient number, since it is larger than the sum of its proper divisors (1).

30361937 is an equidigital number, since it uses as much as digits as its factorization.

30361937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 32.

The square root of 30361937 is about 5510.1666943932. The cubic root of 30361937 is about 311.9678392502.

The spelling of 30361937 in words is "thirty million, three hundred sixty-one thousand, nine hundred thirty-seven".