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30240160 = 255331571
BaseRepresentation
bin111001101011…
…0110110100000
32002220100200221
41303112312200
530220141120
63000052424
7515015506
oct163266640
962810627
1030240160
1116084975
12a164114
13635a3b2
144032676
1529c50aa
hex1cd6da0

30240160 has 48 divisors (see below), whose sum is σ = 71783712. Its totient is φ = 12038400.

The previous prime is 30240151. The next prime is 30240163. The reversal of 30240160 is 6104203.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (30240163) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 52675 + ... + 53245.

It is an arithmetic number, because the mean of its divisors is an integer number (1495494).

Almost surely, 230240160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30240160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35891856).

30240160 is an abundant number, since it is smaller than the sum of its proper divisors (41543552).

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

30240160 is a wasteful number, since it uses less digits than its factorization.

30240160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 909 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30240160 is about 5499.1053817871. The cubic root of 30240160 is about 311.5501955804.

Adding to 30240160 its reverse (6104203), we get a palindrome (36344363).

The spelling of 30240160 in words is "thirty million, two hundred forty thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 331 571 662 1142 1324 1655 2284 2648 2855 3310 4568 5296 5710 6620 9136 10592 11420 13240 18272 22840 26480 45680 52960 91360 189001 378002 756004 945005 1512008 1890010 3024016 3780020 6048032 7560040 15120080 30240160