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30340120 = 235758503
BaseRepresentation
bin111001110111…
…1010000011000
32010002102211011
41303233100120
530231340440
63002143304
7515613106
oct163572030
963072734
1030340120
1116142a88
12a1b1b34
136393a45
14405ac76
1529e49ea
hex1cef418

30340120 has 16 divisors (see below), whose sum is σ = 68265360. Its totient is φ = 12136032.

The previous prime is 30340117. The next prime is 30340133. The reversal of 30340120 is 2104303.

It is a super-2 number, since 2×303401202 = 1841045763228800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30340120.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 379212 + ... + 379291.

It is an arithmetic number, because the mean of its divisors is an integer number (4266585).

Almost surely, 230340120 is an apocalyptic number.

It is an amenable number.

30340120 is an abundant number, since it is smaller than the sum of its proper divisors (37925240).

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

30340120 is a wasteful number, since it uses less digits than its factorization.

30340120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758514 (or 758510 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30340120 is about 5508.1866344560. The cubic root of 30340120 is about 311.8930983750.

Adding to 30340120 its reverse (2104303), we get a palindrome (32444423).

The spelling of 30340120 in words is "thirty million, three hundred forty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 758503 1517006 3034012 3792515 6068024 7585030 15170060 30340120