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128796876324 = 223223265310357
BaseRepresentation
bin111011111110011100…
…1000101111000100100
3110022110002001020012200
41313330321011320210
54102234000020244
6135100220014500
712206464246104
oct1677471057044
9408402036180
10128796876324
114a69352a546
1220b65991430
13c1b785862c
14633b7a5204
15353c40c669
hex1dfce45e24

128796876324 has 108 divisors (see below), whose sum is σ = 340894644636. Its totient is φ = 40998824064.

The previous prime is 128796876323. The next prime is 128796876343. The reversal of 128796876324 is 423678697821.

It can be written as a sum of positive squares in 2 ways, for example, as 46404914724 + 82391961600 = 215418^2 + 287040^2 .

It is not an unprimeable number, because it can be changed into a prime (128796876323) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12430554 + ... + 12440910.

Almost surely, 2128796876324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128796876324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170447322318).

128796876324 is an abundant number, since it is smaller than the sum of its proper divisors (212097768312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128796876324 is a wasteful number, since it uses less digits than its factorization.

128796876324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11066 (or 11038 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The spelling of 128796876324 in words is "one hundred twenty-eight billion, seven hundred ninety-six million, eight hundred seventy-six thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 276 414 529 653 828 1058 1306 1587 1959 2116 2612 3174 3918 4761 5877 6348 7836 9522 10357 11754 15019 19044 20714 23508 30038 31071 41428 45057 60076 62142 90114 93213 124284 135171 180228 186426 238211 270342 345437 372852 476422 540684 690874 714633 952844 1036311 1381748 1429266 2072622 2143899 2858532 3108933 4145244 4287798 5478853 6217866 6763121 8575596 10957706 12435732 13526242 16436559 20289363 21915412 27052484 32873118 40578726 49309677 60868089 65746236 81157452 98619354 121736178 155551783 197238708 243472356 311103566 466655349 622207132 933310698 1399966047 1866621396 2799932094 3577691009 5599864188 7155382018 10733073027 14310764036 21466146054 32199219081 42932292108 64398438162 128796876324