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52512130528 = 25111391912487
BaseRepresentation
bin110000111001111101…
…111000010111100000
312000112122211121212021
4300321331320113200
51330021101134103
640042421111224
73536204513314
oct607175702740
9160478747767
1052512130528
11202a7801990
12a216258514
134c4b3586b0
14278221bb44
1515751b9bbd
hexc39f785e0

52512130528 has 96 divisors (see below), whose sum is σ = 121599152640. Its totient is φ = 22007324160.

The previous prime is 52512130519. The next prime is 52512130529. The reversal of 52512130528 is 82503121525.

It is a junction number, because it is equal to n+sod(n) for n = 52512130493 and 52512130502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52512130529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4199101 + ... + 4211587.

It is an arithmetic number, because the mean of its divisors is an integer number (1266657840).

Almost surely, 252512130528 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 52512130528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60799576320).

52512130528 is an abundant number, since it is smaller than the sum of its proper divisors (69087022112).

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

52512130528 is a wasteful number, since it uses less digits than its factorization.

52512130528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440 (or 13432 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 52512130528 in words is "fifty-two billion, five hundred twelve million, one hundred thirty thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 11 13 16 22 26 32 44 52 88 104 143 176 208 286 352 416 572 919 1144 1838 2288 3676 4576 7352 10109 11947 12487 14704 20218 23894 24974 29408 40436 47788 49948 80872 95576 99896 131417 137357 161744 162331 191152 199792 262834 274714 323488 324662 382304 399584 525668 549428 649324 1051336 1098856 1298648 1785641 2102672 2197712 2597296 3571282 4205344 4395424 5194592 7142564 11475553 14285128 22951106 28570256 45902212 57140512 91804424 126231083 149182189 183608848 252462166 298364378 367217696 504924332 596728756 1009848664 1193457512 1641004079 2019697328 2386915024 3282008158 4039394656 4773830048 6564016316 13128032632 26256065264 52512130528