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13130451455440 = 24511118971254179
BaseRepresentation
bin1011111100010010101111…
…1001010000110111010000
31201111020222201221002100011
42333010223321100313100
53210112131033033230
643532013544004304
72523433553566354
oct277045371206720
951436881832304
1013130451455440
114202658599aa0
121580929760694
13743272249237
1433573544b464
1517b846e74e2a
hexbf12be50dd0

13130451455440 has 80 divisors (see below), whose sum is σ = 33306425484480. Its totient is φ = 4774304476160.

The previous prime is 13130451455423. The next prime is 13130451455441. The reversal of 13130451455440 is 4455415403131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 13130451455393 and 13130451455402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130451455441) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9842271 + ... + 11096449.

It is an arithmetic number, because the mean of its divisors is an integer number (416330318556).

Almost surely, 213130451455440 is an apocalyptic number.

13130451455440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13130451455440 is an abundant number, since it is smaller than the sum of its proper divisors (20175974029040).

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

13130451455440 is a wasteful number, since it uses less digits than its factorization.

13130451455440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266100 (or 1266094 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 13130451455440 its reverse (4455415403131), we get a palindrome (17585866858571).

The spelling of 13130451455440 in words is "thirteen trillion, one hundred thirty billion, four hundred fifty-one million, four hundred fifty-five thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 440 880 11897 23794 47588 59485 95176 118970 130867 190352 237940 261734 475880 523468 654335 951760 1046936 1254179 1308670 2093872 2508358 2617340 5016716 5234680 6270895 10033432 10469360 12541790 13795969 20066864 25083580 27591938 50167160 55183876 68979845 100334320 110367752 137959690 220735504 275919380 551838760 1103677520 14920967563 29841935126 59683870252 74604837815 119367740504 149209675630 164130643193 238735481008 298419351260 328261286386 596838702520 656522572772 820653215965 1193677405040 1313045145544 1641306431930 2626090291088 3282612863860 6565225727720 13130451455440