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13085996568880 = 2451923374313403
BaseRepresentation
bin1011111001101101001000…
…1011010101000100110000
31201100000020121012212100011
42332123102023111010300
53203400110110201010
643455342425304304
72520301123361164
oct276332213250460
951300217185304
1013085996568880
114195815a03824
1215741a1935094
1373c009257331
14333519358ca4
1517a5e4311a8a
hexbe6d22d5130

13085996568880 has 80 divisors (see below), whose sum is σ = 33418700709120. Its totient is φ = 4743299430144.

The previous prime is 13085996568851. The next prime is 13085996568907. The reversal of 13085996568880 is 8886569958031.

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 (76).

It is a junction number, because it is equal to n+sod(n) for n = 13085996568797 and 13085996568806.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187121742 + ... + 187191661.

It is an arithmetic number, because the mean of its divisors is an integer number (417733758864).

Almost surely, 213085996568880 is an apocalyptic number.

13085996568880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13085996568880 is an abundant number, since it is smaller than the sum of its proper divisors (20332704140240).

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

13085996568880 is a wasteful number, since it uses less digits than its factorization.

13085996568880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374313458 (or 374313452 counting only the distinct ones).

The product of its (nonzero) digits is 895795200, while the sum is 76.

The spelling of 13085996568880 in words is "thirteen trillion, eighty-five billion, nine hundred ninety-six million, five hundred sixty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 19 20 23 38 40 46 76 80 92 95 115 152 184 190 230 304 368 380 437 460 760 874 920 1520 1748 1840 2185 3496 4370 6992 8740 17480 34960 374313403 748626806 1497253612 1871567015 2994507224 3743134030 5989014448 7111954657 7486268060 8609208269 14223909314 14972536120 17218416538 28447818628 29945072240 34436833076 35559773285 43046041345 56895637256 68873666152 71119546570 86092082690 113791274512 137747332304 142239093140 163574957111 172184165380 284478186280 327149914222 344368330760 568956372560 654299828444 688736661520 817874785555 1308599656888 1635749571110 2617199313776 3271499142220 6542998284440 13085996568880