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30250100 = 22521132677
BaseRepresentation
bin111001101100…
…1010001110100
32002220212100002
41303121101310
530221000400
63000210432
7515056466
oct163312164
962825302
1030250100
1116091391
12a169a18
136361a8a
144036136
1529c7ed5
hex1cd9474

30250100 has 36 divisors (see below), whose sum is σ = 66248364. Its totient is φ = 11988480.

The previous prime is 30250081. The next prime is 30250111. The reversal of 30250100 is 105203.

It can be written as a sum of positive squares in 6 ways, for example, as 15335056 + 14915044 = 3916^2 + 3862^2 .

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 11 ways as a sum of consecutive naturals, for example, 9962 + ... + 12638.

Almost surely, 230250100 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 30250100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33124182).

30250100 is an abundant number, since it is smaller than the sum of its proper divisors (35998264).

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

30250100 is a wasteful number, since it uses less digits than its factorization.

30250100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804 (or 2797 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 30250100 is about 5500.0090909016. The cubic root of 30250100 is about 311.5843275613.

Adding to 30250100 its reverse (105203), we get a palindrome (30355303).

The spelling of 30250100 in words is "thirty million, two hundred fifty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 113 226 452 565 1130 2260 2677 2825 5354 5650 10708 11300 13385 26770 53540 66925 133850 267700 302501 605002 1210004 1512505 3025010 6050020 7562525 15125050 30250100