Search a number
-
+
30492347 is a prime number
BaseRepresentation
bin111010001010…
…0011010111011
32010101011122012
41310110122323
530301223342
63005320135
7520115654
oct164243273
963334565
1030492347
1116237396
12a26604b
136418112
14409a52b
152a24b82
hex1d146bb

30492347 has 2 divisors, whose sum is σ = 30492348. Its totient is φ = 30492346.

The previous prime is 30492323. The next prime is 30492349. The reversal of 30492347 is 74329403.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30492347 - 216 = 30426811 is a prime.

Together with 30492349, 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 (30492349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15246173 + 15246174.

It is an arithmetic number, because the mean of its divisors is an integer number (15246174).

Almost surely, 230492347 is an apocalyptic number.

30492347 is a deficient number, since it is larger than the sum of its proper divisors (1).

30492347 is an equidigital number, since it uses as much as digits as its factorization.

30492347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 30492347 is about 5521.9875950603. The cubic root of 30492347 is about 312.4138540146.

The spelling of 30492347 in words is "thirty million, four hundred ninety-two thousand, three hundred forty-seven".