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2520530000 = 2454269937
BaseRepresentation
bin1001011000111100…
…0011110001010000
320111122211012010222
42112033003301100
520130223430000
61054035412212
7116314102652
oct22617036120
96448735128
102520530000
11108385654a
125a4154068
13312269b91
1419ca766d2
15eb433a85
hex963c3c50

2520530000 has 100 divisors (see below), whose sum is σ = 6131677860. Its totient is φ = 1003392000.

The previous prime is 2520529961. The next prime is 2520530009. The reversal of 2520530000 is 350252.

It can be written as a sum of positive squares in 10 ways, for example, as 2516828224 + 3701776 = 50168^2 + 1924^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520530009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2689532 + ... + 2690468.

Almost surely, 22520530000 is an apocalyptic number.

2520530000 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 2520530000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3065838930).

2520530000 is an abundant number, since it is smaller than the sum of its proper divisors (3611147860).

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

2520530000 is an equidigital number, since it uses as much as digits as its factorization.

2520530000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 2520530000 is about 50204.8802408690. The cubic root of 2520530000 is about 1360.9138177948.

Adding to 2520530000 its reverse (350252), we get a palindrome (2520880252).

The spelling of 2520530000 in words is "two billion, five hundred twenty million, five hundred thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 269 400 500 538 625 937 1000 1076 1250 1345 1874 2000 2152 2500 2690 3748 4304 4685 5000 5380 6725 7496 9370 10000 10760 13450 14992 18740 21520 23425 26900 33625 37480 46850 53800 67250 74960 93700 107600 117125 134500 168125 187400 234250 252053 269000 336250 374800 468500 504106 538000 585625 672500 937000 1008212 1171250 1260265 1345000 1874000 2016424 2342500 2520530 2690000 4032848 4685000 5041060 6301325 9370000 10082120 12602650 20164240 25205300 31506625 50410600 63013250 100821200 126026500 157533125 252053000 315066250 504106000 630132500 1260265000 2520530000