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30024040 = 2351767659
BaseRepresentation
bin111001010001…
…0000101101000
32002111101020111
41302202011220
530141232130
62551304104
7513125434
oct162420550
962441214
1030024040
1115a47562
12a07b034
1362b2c07
143db79c4
15298102a
hex1ca2168

30024040 has 64 divisors (see below), whose sum is σ = 72705600. Its totient is φ = 11117568.

The previous prime is 30024011. The next prime is 30024083. The reversal of 30024040 is 4042003.

It is a self number, because there is not a number n which added to its sum of digits gives 30024040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45231 + ... + 45889.

It is an arithmetic number, because the mean of its divisors is an integer number (1136025).

Almost surely, 230024040 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 30024040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36352800).

30024040 is an abundant number, since it is smaller than the sum of its proper divisors (42681560).

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

30024040 is a wasteful number, since it uses less digits than its factorization.

30024040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 30024040 is about 5479.4196773016. The cubic root of 30024040 is about 310.8062260684.

Adding to 30024040 its reverse (4042003), we get a palindrome (34066043).

The spelling of 30024040 in words is "thirty million, twenty-four thousand, forty".

Divisors: 1 2 4 5 8 10 17 20 34 40 67 68 85 134 136 170 268 335 340 536 659 670 680 1139 1318 1340 2278 2636 2680 3295 4556 5272 5695 6590 9112 11203 11390 13180 22406 22780 26360 44153 44812 45560 56015 88306 89624 112030 176612 220765 224060 353224 441530 448120 750601 883060 1501202 1766120 3002404 3753005 6004808 7506010 15012020 30024040