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12385473529 = 111386611703
BaseRepresentation
bin10111000100011101…
…10101001111111001
31011222011110020121211
423202032311033321
5200331140123104
65404555403121
7615631534162
oct134216651771
934864406554
1012385473529
115286305640
122497a534a1
131224c8b180
14856cc0769
154c7514e04
hex2e23b53f9

12385473529 has 8 divisors (see below), whose sum is σ = 14550766272. Its totient is φ = 10393404240.

The previous prime is 12385473491. The next prime is 12385473601. The reversal of 12385473529 is 92537458321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12385473529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12385473329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43305709 + ... + 43305994.

It is an arithmetic number, because the mean of its divisors is an integer number (1818845784).

Almost surely, 212385473529 is an apocalyptic number.

It is an amenable number.

12385473529 is a deficient number, since it is larger than the sum of its proper divisors (2165292743).

12385473529 is a wasteful number, since it uses less digits than its factorization.

12385473529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86611727.

The product of its digits is 1814400, while the sum is 49.

The spelling of 12385473529 in words is "twelve billion, three hundred eighty-five million, four hundred seventy-three thousand, five hundred twenty-nine".

Divisors: 1 11 13 143 86611703 952728733 1125952139 12385473529