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115952801920 = 2752941152377
BaseRepresentation
bin110101111111101010…
…0110101100010000000
3102002021221122122110021
41223333110311202000
53344432404130140
6125133514543224
711243263361044
oct1537724654200
9362257578407
10115952801920
11451a237431a
121a580437b14
13ac1b87b9c7
14587da28024
153039a0ab4a
hex1aff535880

115952801920 has 128 divisors (see below), whose sum is σ = 293754308400. Its totient is φ = 43689246720.

The previous prime is 115952801917. The next prime is 115952801957. The reversal of 115952801920 is 29108259511.

It can be written as a sum of positive squares in 8 ways, for example, as 23570846784 + 92381955136 = 153528^2 + 303944^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684772 + ... + 837148.

Almost surely, 2115952801920 is an apocalyptic number.

115952801920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115952801920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146877154200).

115952801920 is an abundant number, since it is smaller than the sum of its proper divisors (177801506480).

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

115952801920 is a wasteful number, since it uses less digits than its factorization.

115952801920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152466 (or 152454 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 43.

The spelling of 115952801920 in words is "one hundred fifteen billion, nine hundred fifty-two million, eight hundred one thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 29 32 40 41 58 64 80 82 116 128 145 160 164 205 232 290 320 328 410 464 580 640 656 820 928 1160 1189 1312 1640 1856 2320 2378 2624 3280 3712 4640 4756 5248 5945 6560 9280 9512 11890 13120 18560 19024 23780 26240 38048 47560 76096 95120 152192 152377 190240 304754 380480 609508 760960 761885 1219016 1523770 2438032 3047540 4418933 4876064 6095080 6247457 8837866 9752128 12190160 12494914 17675732 19504256 22094665 24380320 24989828 31237285 35351464 44189330 48760640 49979656 62474570 70702928 88378660 97521280 99959312 124949140 141405856 176757320 181176253 199918624 249898280 282811712 353514640 362352506 399837248 499796560 565623424 707029280 724705012 799674496 905881265 999593120 1414058560 1449410024 1811762530 1999186240 2828117120 2898820048 3623525060 3998372480 5797640096 7247050120 11595280192 14494100240 23190560384 28988200480 57976400960 115952801920