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13085204572 = 22111717493589
BaseRepresentation
bin11000010111111000…
…00110000001011100
31020202221010021011101
430023330012001130
5203244303021242
610002233202444
7642156255316
oct141374060134
936687107141
1013085204572
115605290960
122652260424
131306c34ccb
148c1bc87b6
15518b829b7
hex30bf0605c

13085204572 has 24 divisors (see below), whose sum is σ = 26450308080. Its totient is φ = 5597948160.

The previous prime is 13085204519. The next prime is 13085204591. The reversal of 13085204572 is 27540258031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8746047 + ... + 8747542.

It is an arithmetic number, because the mean of its divisors is an integer number (1102096170).

Almost surely, 213085204572 is an apocalyptic number.

It is an amenable number.

13085204572 is an abundant number, since it is smaller than the sum of its proper divisors (13365103508).

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

13085204572 is a wasteful number, since it uses less digits than its factorization.

13085204572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17493621 (or 17493619 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 13085204572 in words is "thirteen billion, eighty-five million, two hundred four thousand, five hundred seventy-two".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 17493589 34987178 69974356 192429479 297391013 384858958 594782026 769717916 1189564052 3271301143 6542602286 13085204572