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30123404 = 227530851
BaseRepresentation
bin111001011101…
…0010110001100
32002200102112122
41302322112030
530202422104
62553352112
7514021223
oct162722614
962612478
1030123404
1116005183
12a108638
1363191cc
144001cba
1529a06be
hex1cba58c

30123404 has 6 divisors (see below), whose sum is σ = 52715964. Its totient is φ = 15061700.

The previous prime is 30123391. The next prime is 30123409. The reversal of 30123404 is 40432103.

It is not an unprimeable number, because it can be changed into a prime (30123409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3765422 + ... + 3765429.

It is an arithmetic number, because the mean of its divisors is an integer number (8785994).

Almost surely, 230123404 is an apocalyptic number.

It is an amenable number.

30123404 is a deficient number, since it is larger than the sum of its proper divisors (22592560).

30123404 is a wasteful number, since it uses less digits than its factorization.

30123404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530855 (or 7530853 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30123404 is about 5488.4792064833. The cubic root of 30123404 is about 311.1487176573.

Adding to 30123404 its reverse (40432103), we get a palindrome (70555507).

The spelling of 30123404 in words is "thirty million, one hundred twenty-three thousand, four hundred four".

Divisors: 1 2 4 7530851 15061702 30123404