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128880540295 = 5131982777543
BaseRepresentation
bin111100000000111100…
…0001111101010000111
3110022122220110210121021
41320001320033222013
54102421404242140
6135112405132011
712211531342303
oct1700170175207
9408586423537
10128880540295
114a726783521
1220b899ba007
13c1cbc9c640
146348942d03
153544936b4a
hex1e01e0fa87

128880540295 has 8 divisors (see below), whose sum is σ = 166553313696. Its totient is φ = 95173322016.

The previous prime is 128880540263. The next prime is 128880540331. The reversal of 128880540295 is 592045088821.

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

It is a cyclic number.

It is not a de Polignac number, because 128880540295 - 25 = 128880540263 is a prime.

It is a super-2 number, since 2×1288805402952 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991388707 + ... + 991388836.

It is an arithmetic number, because the mean of its divisors is an integer number (20819164212).

Almost surely, 2128880540295 is an apocalyptic number.

128880540295 is a deficient number, since it is larger than the sum of its proper divisors (37672773401).

128880540295 is a wasteful number, since it uses less digits than its factorization.

128880540295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982777561.

The product of its (nonzero) digits is 1843200, while the sum is 52.

The spelling of 128880540295 in words is "one hundred twenty-eight billion, eight hundred eighty million, five hundred forty thousand, two hundred ninety-five".

Divisors: 1 5 13 65 1982777543 9913887715 25776108059 128880540295