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128983134343 = 71357432
BaseRepresentation
bin111100000011111111…
…1100111000010000111
3110022221001112010011211
41320013333213002013
54103124140244333
6135130512112251
712214215360310
oct1700777470207
9408831463154
10128983134343
114a779686998
1220bb8235687
13c217310a8b
14635840b607
15354d94eecd
hex1e07fe7087

128983134343 has 6 divisors (see below), whose sum is σ = 147410382344. Its totient is φ = 110556157836.

The previous prime is 128983134307. The next prime is 128983134347. The reversal of 128983134343 is 343431389821.

It is a de Polignac number, because none of the positive numbers 2k-128983134343 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 (128983134347) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 882330 + ... + 1018072.

Almost surely, 2128983134343 is an apocalyptic number.

128983134343 is a deficient number, since it is larger than the sum of its proper divisors (18427248001).

128983134343 is an frugal number, since it uses more digits than its factorization.

128983134343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271493 (or 135750 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

The spelling of 128983134343 in words is "one hundred twenty-eight billion, nine hundred eighty-three million, one hundred thirty-four thousand, three hundred forty-three".

Divisors: 1 7 135743 950201 18426162049 128983134343