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128862705941 = 17137331167159
BaseRepresentation
bin111100000000011010…
…0001101100100010101
3110022121122220201110122
41320000310031210111
54102402323042231
6135110531001325
712211223633144
oct1700064154425
9408548821418
10128862705941
114a717702292
1220b83a39245
13c1c8396b78
14634641d75b
1535430b277b
hex1e00d0d915

128862705941 has 16 divisors (see below), whose sum is σ = 137854846080. Its totient is φ = 120032816640.

The previous prime is 128862705913. The next prime is 128862705949. The reversal of 128862705941 is 149507268821.

It is not a de Polignac number, because 128862705941 - 230 = 127788964117 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 (128862705949) 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, 687320 + ... + 854478.

It is an arithmetic number, because the mean of its divisors is an integer number (8615927880).

Almost surely, 2128862705941 is an apocalyptic number.

It is an amenable number.

128862705941 is a deficient number, since it is larger than the sum of its proper divisors (8992140139).

128862705941 is a wasteful number, since it uses less digits than its factorization.

128862705941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167644.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 128862705941 in words is "one hundred twenty-eight billion, eight hundred sixty-two million, seven hundred five thousand, nine hundred forty-one".

Divisors: 1 17 137 331 2329 5627 45347 167159 770899 2841703 22900783 55329629 389313311 940603693 7580159173 128862705941