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30485320 = 2356611153
BaseRepresentation
bin111010001001…
…0101101001000
32010100210222221
41310102231020
530301012240
63005223424
7520056325
oct164225510
963323887
1030485320
1116232088
12a261b74
136414b68
144097b4c
152a22a4a
hex1d12b48

30485320 has 32 divisors (see below), whose sum is σ = 68755320. Its totient is φ = 12165120.

The previous prime is 30485317. The next prime is 30485333. The reversal of 30485320 is 2358403.

It can be written as a sum of positive squares in 4 ways, for example, as 29789764 + 695556 = 5458^2 + 834^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25864 + ... + 27016.

Almost surely, 230485320 is an apocalyptic number.

It is an amenable number.

30485320 is an abundant number, since it is smaller than the sum of its proper divisors (38270000).

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

30485320 is a wasteful number, since it uses less digits than its factorization.

30485320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825 (or 1821 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 30485320 is about 5521.3512838797. The cubic root of 30485320 is about 312.3898534480.

The spelling of 30485320 in words is "thirty million, four hundred eighty-five thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 661 1153 1322 2306 2644 3305 4612 5288 5765 6610 9224 11530 13220 23060 26440 46120 762133 1524266 3048532 3810665 6097064 7621330 15242660 30485320