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30642701 is a prime number
BaseRepresentation
bin111010011100…
…1001000001101
32010122210212212
41310321020031
530321031301
63012440205
7521313215
oct164711015
963583785
1030642701
111632a351
12a319065
13646b69b
1440d9245
152a544bb
hex1d3920d

30642701 has 2 divisors, whose sum is σ = 30642702. Its totient is φ = 30642700.

The previous prime is 30642683. The next prime is 30642707. The reversal of 30642701 is 10724603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26020201 + 4622500 = 5101^2 + 2150^2 .

It is a cyclic number.

It is not a de Polignac number, because 30642701 - 218 = 30380557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30642707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15321350 + 15321351.

It is an arithmetic number, because the mean of its divisors is an integer number (15321351).

Almost surely, 230642701 is an apocalyptic number.

It is an amenable number.

30642701 is a deficient number, since it is larger than the sum of its proper divisors (1).

30642701 is an equidigital number, since it uses as much as digits as its factorization.

30642701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 30642701 is about 5535.5849736049. The cubic root of 30642701 is about 312.9265037178.

The spelling of 30642701 in words is "thirty million, six hundred forty-two thousand, seven hundred one".