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128111347343 = 7291301485081
BaseRepresentation
bin111011101010000001…
…0000000011010001111
3110020200022002202020102
41313110002000122033
54044333001103333
6134504210441315
712153501325250
oct1672402003217
9406608082212
10128111347343
114a371574471
12209b429323b
13c108814b95
1462b4716b27
1534ec147ae8
hex1dd408068f

128111347343 has 16 divisors (see below), whose sum is σ = 151578423360. Its totient is φ = 105941472000.

The previous prime is 128111347327. The next prime is 128111347391. The reversal of 128111347343 is 343743111821.

It is not a de Polignac number, because 128111347343 - 24 = 128111347327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128111347297 and 128111347306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128117347343) 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, 21563 + ... + 506643.

It is an arithmetic number, because the mean of its divisors is an integer number (9473651460).

Almost surely, 2128111347343 is an apocalyptic number.

128111347343 is a deficient number, since it is larger than the sum of its proper divisors (23467076017).

128111347343 is a wasteful number, since it uses less digits than its factorization.

128111347343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486418.

The product of its digits is 48384, while the sum is 38.

The spelling of 128111347343 in words is "one hundred twenty-eight billion, one hundred eleven million, three hundred forty-seven thousand, three hundred forty-three".

Divisors: 1 7 29 203 1301 9107 37729 264103 485081 3395567 14067349 98471443 631090381 4417632667 18301621049 128111347343