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30403030 = 257262047
BaseRepresentation
bin111001111111…
…0100111010110
32010012122010011
41303332213112
530240344110
63003350434
7516264400
oct163764726
963178104
1030403030
1116186279
12a22241a
1363b6578
144075b70
152a0848a
hex1cfe9d6

30403030 has 24 divisors (see below), whose sum is σ = 63661248. Its totient is φ = 10423728.

The previous prime is 30403013. The next prime is 30403039. The reversal of 30403030 is 3030403.

It is a self number, because there is not a number n which added to its sum of digits gives 30403030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30403039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30534 + ... + 31513.

It is an arithmetic number, because the mean of its divisors is an integer number (2652552).

Almost surely, 230403030 is an apocalyptic number.

30403030 is an abundant number, since it is smaller than the sum of its proper divisors (33258218).

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

30403030 is a wasteful number, since it uses less digits than its factorization.

30403030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62068 (or 62061 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 13.

The square root of 30403030 is about 5513.8942681194. The cubic root of 30403030 is about 312.1085188475.

Adding to 30403030 its reverse (3030403), we get a palindrome (33433433).

The spelling of 30403030 in words is "thirty million, four hundred three thousand, thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 62047 124094 310235 434329 620470 868658 2171645 3040303 4343290 6080606 15201515 30403030