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12530250500 = 2253236731619
BaseRepresentation
bin10111010101101110…
…00111001100000100
31012100020212200021212
423222313013030010
5201130221004000
65431210430552
7622340241365
oct135267071404
935306780255
1012530250500
11534aaaa729
122518432458
131248c7b911
1486c209b6c
154d50b1c35
hex2eadc7304

12530250500 has 96 divisors (see below), whose sum is σ = 28615991040. Its totient is φ = 4784102400.

The previous prime is 12530250463. The next prime is 12530250529. The reversal of 12530250500 is 505203521.

12530250500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7738691 + ... + 7740309.

It is an arithmetic number, because the mean of its divisors is an integer number (298083240).

Almost surely, 212530250500 is an apocalyptic number.

12530250500 is a gapful number since it is divisible by the number (10) 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 12530250500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14307995520).

12530250500 is an abundant number, since it is smaller than the sum of its proper divisors (16085740540).

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

12530250500 is a wasteful number, since it uses less digits than its factorization.

12530250500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334 (or 2322 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The spelling of 12530250500 in words is "twelve billion, five hundred thirty million, two hundred fifty thousand, five hundred".

Divisors: 1 2 4 5 10 20 23 25 46 50 92 100 115 125 230 250 460 500 575 673 1150 1346 1619 2300 2692 2875 3238 3365 5750 6476 6730 8095 11500 13460 15479 16190 16825 30958 32380 33650 37237 40475 61916 67300 74474 77395 80950 84125 148948 154790 161900 168250 186185 202375 309580 336500 372370 386975 404750 744740 773950 809500 930925 1089587 1547900 1861850 1934875 2179174 3723700 3869750 4358348 4654625 5447935 7739500 9309250 10895870 18618500 21791740 25060501 27239675 50121002 54479350 100242004 108958700 125302505 136198375 250605010 272396750 501210020 544793500 626512525 1253025050 2506050100 3132562625 6265125250 12530250500