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30868423 is a prime number
BaseRepresentation
bin111010111000…
…0001111000111
32011002021111221
41311300033013
530400242143
63021341211
7523243255
oct165601707
964067457
1030868423
11164739a3
12a407807
13651a351
1441575d5
152a9b2ed
hex1d703c7

30868423 has 2 divisors, whose sum is σ = 30868424. Its totient is φ = 30868422.

The previous prime is 30868417. The next prime is 30868433. The reversal of 30868423 is 32486803.

It is a weak prime.

It is an emirp because it is prime and its reverse (32486803) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30868423 - 25 = 30868391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30868403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15434211 + 15434212.

It is an arithmetic number, because the mean of its divisors is an integer number (15434212).

Almost surely, 230868423 is an apocalyptic number.

30868423 is a deficient number, since it is larger than the sum of its proper divisors (1).

30868423 is an equidigital number, since it uses as much as digits as its factorization.

30868423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 30868423 is about 5555.9358347627. The cubic root of 30868423 is about 313.6929903878.

The spelling of 30868423 in words is "thirty million, eight hundred sixty-eight thousand, four hundred twenty-three".