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30003424 = 251185237
BaseRepresentation
bin111001001110…
…1000011100000
32002110022221221
41302131003200
530140102144
62551024424
7513011353
oct162350340
962408857
1030003424
1115a33020
12a06b114
1362a6709
143db029a
152979d84
hex1c9d0e0

30003424 has 24 divisors (see below), whose sum is σ = 64439928. Its totient is φ = 13637760.

The previous prime is 30003401. The next prime is 30003427. The reversal of 30003424 is 42430003.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 30003398 and 30003407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30003427) 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, 42267 + ... + 42970.

It is an arithmetic number, because the mean of its divisors is an integer number (2684997).

Almost surely, 230003424 is an apocalyptic number.

It is an amenable number.

30003424 is an abundant number, since it is smaller than the sum of its proper divisors (34436504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30003424 is a wasteful number, since it uses less digits than its factorization.

30003424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85258 (or 85250 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 30003424 is about 5477.5381331397. The cubic root of 30003424 is about 310.7350714391.

Adding to 30003424 its reverse (42430003), we get a palindrome (72433427).

The spelling of 30003424 in words is "thirty million, three thousand, four hundred twenty-four".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 85237 170474 340948 681896 937607 1363792 1875214 2727584 3750428 7500856 15001712 30003424