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128769634253760 = 2635134135035681
BaseRepresentation
bin11101010001110110000100…
…010011101011101111000000
3121212221020221012210102220020
4131101312010103223233000
5113334230202332110020
61133511541530013440
736060204402341133
oct3521660423535700
9555836835712806
10128769634253760
1138036993578595
1212538501b77280
1356b0c02bc7cc6
1423b26aac2021a
15ed48d8ad9c40
hex751d844ebbc0

128769634253760 has 56 divisors (see below), whose sum is σ = 408843588758736. Its totient is φ = 34338569134080.

The previous prime is 128769634253719. The next prime is 128769634253789. The reversal of 128769634253760 is 67352436967821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67067516881 + ... + 67067518800.

It is a 1-persistent number, because it is pandigital, but 2⋅128769634253760 = 257539268507520 is not.

Almost surely, 2128769634253760 is an apocalyptic number.

128769634253760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128769634253760 is an abundant number, since it is smaller than the sum of its proper divisors (280073954504976).

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

128769634253760 is a wasteful number, since it uses less digits than its factorization.

128769634253760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134135035701 (or 134135035691 counting only the distinct ones).

The product of its (nonzero) digits is 548674560, while the sum is 69.

The spelling of 128769634253760 in words is "one hundred twenty-eight trillion, seven hundred sixty-nine billion, six hundred thirty-four million, two hundred fifty-three thousand, seven hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 134135035681 268270071362 402405107043 536540142724 670675178405 804810214086 1073080285448 1341350356810 1609620428172 2012025535215 2146160570896 2682700713620 3219240856344 4024051070430 4292321141792 5365401427240 6438481712688 8048102140860 8584642283584 10730802854480 12876963425376 16096204281720 21461605708960 25753926850752 32192408563440 42923211417920 64384817126880 128769634253760