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30423305 = 5113531567
BaseRepresentation
bin111010000001…
…1100100001001
32010020122221002
41310003210021
530242021210
63004024345
7516410453
oct164034411
963218832
1030423305
111619a530
12a2320b5
1363c2873
14407d2d3
152a0e4a5
hex1d03909

30423305 has 16 divisors (see below), whose sum is σ = 39965184. Its totient is φ = 22049280.

The previous prime is 30423299. The next prime is 30423359. The reversal of 30423305 is 50332403.

It is not a de Polignac number, because 30423305 - 28 = 30423049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18632 + ... + 20198.

It is an arithmetic number, because the mean of its divisors is an integer number (2497824).

Almost surely, 230423305 is an apocalyptic number.

It is an amenable number.

30423305 is a deficient number, since it is larger than the sum of its proper divisors (9541879).

30423305 is a wasteful number, since it uses less digits than its factorization.

30423305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936.

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

The square root of 30423305 is about 5515.7324989524. The cubic root of 30423305 is about 312.1778824831.

Adding to 30423305 its reverse (50332403), we get a palindrome (80755708).

The spelling of 30423305 in words is "thirty million, four hundred twenty-three thousand, three hundred five".

Divisors: 1 5 11 55 353 1567 1765 3883 7835 17237 19415 86185 553151 2765755 6084661 30423305