Search a number
-
+
30245244 = 22317173857
BaseRepresentation
bin111001101100…
…0000101111100
32002220121200020
41303120011330
530220321434
63000132140
7515036361
oct163300574
962817606
1030245244
1116088777
12a167050
13635c7c3
144034468
1529c6849
hex1cd817c

30245244 has 48 divisors (see below), whose sum is σ = 75243168. Its totient is φ = 9422848.

The previous prime is 30245233. The next prime is 30245251. The reversal of 30245244 is 44254203.

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 15 ways as a sum of consecutive naturals, for example, 34864 + ... + 35720.

It is an arithmetic number, because the mean of its divisors is an integer number (1567566).

Almost surely, 230245244 is an apocalyptic number.

30245244 is a gapful number since it is divisible by the number (34) 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 30245244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37621584).

30245244 is an abundant number, since it is smaller than the sum of its proper divisors (44997924).

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

30245244 is a wasteful number, since it uses less digits than its factorization.

30245244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 30245244 is about 5499.5676193679. The cubic root of 30245244 is about 311.5676539585.

Adding to 30245244 its reverse (44254203), we get a palindrome (74499447).

The spelling of 30245244 in words is "thirty million, two hundred forty-five thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 173 204 346 519 692 857 1038 1714 2076 2571 2941 3428 5142 5882 8823 10284 11764 14569 17646 29138 35292 43707 58276 87414 148261 174828 296522 444783 593044 889566 1779132 2520437 5040874 7561311 10081748 15122622 30245244