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2530500000 = 253567241
BaseRepresentation
bin1001011011010100…
…0101110110100000
320112100120201102020
42112311011312200
520140302000000
61055033221440
7116464616010
oct22665056640
96470521366
102530500000
111089446116
125a7561880
1331434aba2
141a010dc40
15ec252ba0
hex96d45da0

2530500000 has 336 divisors, whose sum is σ = 9528628032. Its totient is φ = 576000000.

The previous prime is 2530499957. The next prime is 2530500017. The reversal of 2530500000 is 50352.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 10499880 + ... + 10500120.

It is an arithmetic number, because the mean of its divisors is an integer number (28359012).

Almost surely, 22530500000 is an apocalyptic number.

2530500000 is a gapful number since it is divisible by the number (20) 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 2530500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4764314016).

2530500000 is an abundant number, since it is smaller than the sum of its proper divisors (6998128032).

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

2530500000 is an frugal number, since it uses more digits than its factorization.

2530500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 2530500000 is about 50304.0753816229. The cubic root of 2530500000 is about 1362.7058298025.

Adding to 2530500000 its reverse (50352), we get a palindrome (2530550352).

The spelling of 2530500000 in words is "two billion, five hundred thirty million, five hundred thousand".