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30423244 = 2219139821
BaseRepresentation
bin111010000001…
…1100011001100
32010020122211211
41310003203030
530242020434
63004024204
7516410335
oct164034314
963218754
1030423244
111619a485
12a232064
1363c2827
14407d28c
152a0e464
hex1d038cc

30423244 has 12 divisors (see below), whose sum is σ = 53520768. Its totient is φ = 15131600.

The previous prime is 30423229. The next prime is 30423247. The reversal of 30423244 is 44232403.

It is not an unprimeable number, because it can be changed into a prime (30423247) 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, 19147 + ... + 20674.

It is an arithmetic number, because the mean of its divisors is an integer number (4460064).

Almost surely, 230423244 is an apocalyptic number.

It is an amenable number.

30423244 is a deficient number, since it is larger than the sum of its proper divisors (23097524).

30423244 is a wasteful number, since it uses less digits than its factorization.

30423244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40016 (or 40014 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 30423244 is about 5515.7269693124. The cubic root of 30423244 is about 312.1776738397.

Adding to 30423244 its reverse (44232403), we get a palindrome (74655647).

The spelling of 30423244 in words is "thirty million, four hundred twenty-three thousand, two hundred forty-four".

Divisors: 1 2 4 191 382 764 39821 79642 159284 7605811 15211622 30423244