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30355080 = 2335736137
BaseRepresentation
bin111001111001…
…0111010001000
32010010012100020
41303302322020
530232330310
63002340440
7516004530
oct163627210
963105306
1030355080
1116153248
12a1ba720
13639a7b2
1440624c0
1529e9170
hex1cf2e88

30355080 has 64 divisors (see below), whose sum is σ = 104077440. Its totient is φ = 6938112.

The previous prime is 30355069. The next prime is 30355109. The reversal of 30355080 is 8055303.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30355080.

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 15 ways as a sum of consecutive naturals, for example, 17229 + ... + 18908.

It is an arithmetic number, because the mean of its divisors is an integer number (1626210).

Almost surely, 230355080 is an apocalyptic number.

30355080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30355080 is an abundant number, since it is smaller than the sum of its proper divisors (73722360).

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

30355080 is a wasteful number, since it uses less digits than its factorization.

30355080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36158 (or 36154 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 30355080 is about 5509.5444457777. The cubic root of 30355080 is about 311.9443523371.

The spelling of 30355080 in words is "thirty million, three hundred fifty-five thousand, eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 36137 72274 108411 144548 180685 216822 252959 289096 361370 433644 505918 542055 722740 758877 867288 1011836 1084110 1264795 1445480 1517754 2023672 2168220 2529590 3035508 3794385 4336440 5059180 6071016 7588770 10118360 15177540 30355080