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30024100 = 22521132657
BaseRepresentation
bin111001010001…
…0000110100100
32002111101022201
41302202012210
530141232400
62551304244
7513125551
oct162420644
962441281
1030024100
1115a47607
12a07b084
1362b2c52
143db7a28
15298106a
hex1ca21a4

30024100 has 36 divisors (see below), whose sum is σ = 65753604. Its totient is φ = 11898880.

The previous prime is 30024083. The next prime is 30024101. The reversal of 30024100 is 142003.

It can be written as a sum of positive squares in 6 ways, for example, as 4359744 + 25664356 = 2088^2 + 5066^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30024101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9972 + ... + 12628.

It is an arithmetic number, because the mean of its divisors is an integer number (1826489).

Almost surely, 230024100 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 30024100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32876802).

30024100 is an abundant number, since it is smaller than the sum of its proper divisors (35729504).

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

30024100 is a wasteful number, since it uses less digits than its factorization.

30024100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784 (or 2777 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 30024100 is about 5479.4251523312. The cubic root of 30024100 is about 310.8064331065.

Adding to 30024100 its reverse (142003), we get a palindrome (30166103).

The spelling of 30024100 in words is "thirty million, twenty-four thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 113 226 452 565 1130 2260 2657 2825 5314 5650 10628 11300 13285 26570 53140 66425 132850 265700 300241 600482 1200964 1501205 3002410 6004820 7506025 15012050 30024100