Search a number
-
+
30585000 = 233542039
BaseRepresentation
bin111010010101…
…1000010101000
32010112212201210
41310223002220
530312210000
63011313120
7520653045
oct164530250
963485653
1030585000
111629aa66
12a2ab7a0
13644b344
1440c21cc
152a42350
hex1d2b0a8

30585000 has 80 divisors (see below), whose sum is σ = 95594400. Its totient is φ = 8152000.

The previous prime is 30584999. The next prime is 30585001. The reversal of 30585000 is 58503.

It is an interprime number because it is at equal distance from previous prime (30584999) and next prime (30585001).

It is not an unprimeable number, because it can be changed into a prime (30585001) 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 19 ways as a sum of consecutive naturals, for example, 13981 + ... + 16019.

It is an arithmetic number, because the mean of its divisors is an integer number (1194930).

Almost surely, 230585000 is an apocalyptic number.

30585000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30585000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47797200).

30585000 is an abundant number, since it is smaller than the sum of its proper divisors (65009400).

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

30585000 is a wasteful number, since it uses less digits than its factorization.

30585000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068 (or 2049 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 30585000 is about 5530.3706928198. The cubic root of 30585000 is about 312.7299640647.

The spelling of 30585000 in words is "thirty million, five hundred eighty-five thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 125 150 200 250 300 375 500 600 625 750 1000 1250 1500 1875 2039 2500 3000 3750 4078 5000 6117 7500 8156 10195 12234 15000 16312 20390 24468 30585 40780 48936 50975 61170 81560 101950 122340 152925 203900 244680 254875 305850 407800 509750 611700 764625 1019500 1223400 1274375 1529250 2039000 2548750 3058500 3823125 5097500 6117000 7646250 10195000 15292500 30585000