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12012858572005 = 571227149070653
BaseRepresentation
bin1010111011001111011000…
…1010101111110011100101
31120112102021202202020112001
42232303312022233303211
53033304313243301010
641314344145525301
72346620556041434
oct256636612576345
946472252666461
1012012858572005
113911696542315
12142020a043831
13691a666a4285
142d75d565111b
1515c736c37c3a
hexaecf62afce5

12012858572005 has 16 divisors (see below), whose sum is σ = 14682863136384. Its totient is φ = 9433190858560.

The previous prime is 12012858572003. The next prime is 12012858572047. The reversal of 12012858572005 is 50027585821021.

It is not a de Polignac number, because 12012858572005 - 21 = 12012858572003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012858572003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74454742 + ... + 74615911.

It is an arithmetic number, because the mean of its divisors is an integer number (917678946024).

Almost surely, 212012858572005 is an apocalyptic number.

It is an amenable number.

12012858572005 is a deficient number, since it is larger than the sum of its proper divisors (2670004564379).

12012858572005 is a wasteful number, since it uses less digits than its factorization.

12012858572005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149070956.

The product of its (nonzero) digits is 448000, while the sum is 46.

The spelling of 12012858572005 in words is "twelve trillion, twelve billion, eight hundred fifty-eight million, five hundred seventy-two thousand, five".

Divisors: 1 5 71 227 355 1135 16117 80585 149070653 745353265 10584016363 33839038231 52920081815 169195191155 2402571714401 12012858572005