Search a number
-
+
30345023 is a prime number
BaseRepresentation
bin111001111000…
…0011100111111
32010002200112202
41303300130333
530232020043
63002222115
7515633312
oct163603477
963080482
1030345023
1116146735
12a1b493b
136396047
14405c979
1529e61b8
hex1cf073f

30345023 has 2 divisors, whose sum is σ = 30345024. Its totient is φ = 30345022.

The previous prime is 30345013. The next prime is 30345061. The reversal of 30345023 is 32054303.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30345023 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 30344986 and 30345004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30345013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15172511 + 15172512.

It is an arithmetic number, because the mean of its divisors is an integer number (15172512).

Almost surely, 230345023 is an apocalyptic number.

30345023 is a deficient number, since it is larger than the sum of its proper divisors (1).

30345023 is an equidigital number, since it uses as much as digits as its factorization.

30345023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 30345023 is about 5508.6316812798. The cubic root of 30345023 is about 311.9098982371.

Adding to 30345023 its reverse (32054303), we get a palindrome (62399326).

The spelling of 30345023 in words is "thirty million, three hundred forty-five thousand, twenty-three".