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30423433 = 52358171
BaseRepresentation
bin111010000001…
…1100110001001
32010020200002211
41310003212021
530242022213
63004025121
7516411025
oct164034611
963220084
1030423433
111619a637
12a2321a1
1363c2941
14407d385
152a0e53d
hex1d03989

30423433 has 4 divisors (see below), whose sum is σ = 30482128. Its totient is φ = 30364740.

The previous prime is 30423413. The next prime is 30423473. The reversal of 30423433 is 33432403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30423433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30423413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28563 + ... + 29608.

It is an arithmetic number, because the mean of its divisors is an integer number (7620532).

Almost surely, 230423433 is an apocalyptic number.

It is an amenable number.

30423433 is a deficient number, since it is larger than the sum of its proper divisors (58695).

30423433 is an equidigital number, since it uses as much as digits as its factorization.

30423433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58694.

The product of its (nonzero) digits is 2592, while the sum is 22.

The square root of 30423433 is about 5515.7441021135. The cubic root of 30423433 is about 312.1783202912.

Adding to 30423433 its reverse (33432403), we get a palindrome (63855836).

The spelling of 30423433 in words is "thirty million, four hundred twenty-three thousand, four hundred thirty-three".

Divisors: 1 523 58171 30423433