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5131581590680 = 235438935599419
BaseRepresentation
bin100101010101100101000…
…0110010000110010011000
3200011120111202002111120121
41022223022012100302120
51133033434341400210
614525225510403024
71036513242554056
oct112531206206230
920146452074517
105131581590680
1116a9323034126
126aa650360474
132b2ba182746c
1413a526d131d6
158d73e3496da
hex4aaca190c98

5131581590680 has 128 divisors (see below), whose sum is σ = 11951945280000. Its totient is φ = 1981602653184.

The previous prime is 5131581590669. The next prime is 5131581590683. The reversal of 5131581590680 is 860951851315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131581590683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544807011 + ... + 544816429.

It is an arithmetic number, because the mean of its divisors is an integer number (93374572500).

Almost surely, 25131581590680 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 5131581590680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5975972640000).

5131581590680 is an abundant number, since it is smaller than the sum of its proper divisors (6820363689320).

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

5131581590680 is a wasteful number, since it uses less digits than its factorization.

5131581590680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13121 (or 13117 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 52.

The spelling of 5131581590680 in words is "five trillion, one hundred thirty-one billion, five hundred eighty-one million, five hundred ninety thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 43 86 89 172 178 215 344 356 430 445 712 860 890 1720 1780 3559 3560 3827 7118 7654 9419 14236 15308 17795 18838 19135 28472 30616 35590 37676 38270 47095 71180 75352 76540 94190 142360 153037 153080 188380 306074 316751 376760 405017 612148 633502 765185 810034 838291 1224296 1267004 1530370 1583755 1620068 1676582 2025085 2534008 3060740 3167510 3240136 3353164 4050170 4191455 6121480 6335020 6706328 8100340 8382910 12670040 13620293 16200680 16765820 27240586 33522221 33531640 36046513 54481172 67044442 68101465 72093026 108962344 134088884 136202930 144186052 167611105 180232565 268177768 272405860 288372104 335222210 360465130 544811720 670444420 720930260 1340888840 1441455503 1441860520 2882911006 2983477669 5765822012 5966955338 7207277515 11531644024 11933910676 14414555030 14917388345 23867821352 28829110060 29834776690 57658220120 59669553380 119339106760 128289539767 256579079534 513158159068 641447698835 1026316318136 1282895397670 2565790795340 5131581590680