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128303325706 = 29726818117
BaseRepresentation
bin111011101111101111…
…0010110001000001010
3110021011200100021001011
41313133132112020022
54100231122410311
6134535225314134
712161322163033
oct1673736261012
9407150307034
10128303325706
114a45a978676
1220a4863594a
13c139520c4a
1462d200ba8a
15350de1a321
hex1ddf79620a

128303325706 has 12 divisors (see below), whose sum is σ = 194459543478. Its totient is φ = 63490296192.

The previous prime is 128303325691. The next prime is 128303325713. The reversal of 128303325706 is 607523303821.

It can be written as a sum of positive squares in 3 ways, for example, as 127228469481 + 1074856225 = 356691^2 + 32785^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3390241 + ... + 3427876.

Almost surely, 2128303325706 is an apocalyptic number.

128303325706 is a deficient number, since it is larger than the sum of its proper divisors (66156217772).

128303325706 is an frugal number, since it uses more digits than its factorization.

128303325706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6818313 (or 6818216 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 128303325706 in words is "one hundred twenty-eight billion, three hundred three million, three hundred twenty-five thousand, seven hundred six".

Divisors: 1 2 97 194 9409 18818 6818117 13636234 661357349 1322714698 64151662853 128303325706