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52507009905 = 357677994477
BaseRepresentation
bin110000111001101010…
…010110001101110001
312000112022012110200120
4300321222112031301
51330013243304110
640042115240453
73536113135350
oct607152261561
9160468173616
1052507009905
11202a4924769
12a2145a9129
134c4a284a3c
142781687997
151574a07870
hexc39a96371

52507009905 has 64 divisors (see below), whose sum is σ = 98680381440. Its totient is φ = 23345397504.

The previous prime is 52507009871. The next prime is 52507009913. The reversal of 52507009905 is 50990070525.

52507009905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52507009905 - 27 = 52507009777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 508527 + ... + 603003.

It is an arithmetic number, because the mean of its divisors is an integer number (1541880960).

Almost surely, 252507009905 is an apocalyptic number.

It is an amenable number.

52507009905 is a deficient number, since it is larger than the sum of its proper divisors (46173371535).

52507009905 is a wasteful number, since it uses less digits than its factorization.

52507009905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94638.

The product of its (nonzero) digits is 141750, while the sum is 42.

The spelling of 52507009905 in words is "fifty-two billion, five hundred seven million, nine thousand, nine hundred five".

Divisors: 1 3 5 7 15 21 35 67 79 105 201 237 335 395 469 553 1005 1185 1407 1659 2345 2765 5293 7035 8295 15879 26465 37051 79395 94477 111153 185255 283431 472385 555765 661339 1417155 1984017 3306695 6329959 7463683 9920085 18989877 22391049 31649795 37318415 44309713 52245781 94949385 111955245 132929139 156737343 221548565 261228905 500066761 664645695 783686715 1500200283 2500333805 3500467327 7501001415 10501401981 17502336635 52507009905