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8142208155380 = 22513311877538199
BaseRepresentation
bin111011001111100000101…
…1011001011111011110100
31001211101110111010012100002
41312133001123023323310
52031400220241433010
625152251230210432
71500153336252305
oct166370133137364
931741414105302
108142208155380
11265a100267182
12ab6021053a18
13470a64ab1870
1420212926c7ac
15e1be69651a5
hex767c16cbef4

8142208155380 has 96 divisors (see below), whose sum is σ = 19018076313600. Its totient is φ = 2907819210240.

The previous prime is 8142208155379. The next prime is 8142208155413. The reversal of 8142208155380 is 835518022418.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14859521 + ... + 15397719.

It is an arithmetic number, because the mean of its divisors is an integer number (198104961600).

Almost surely, 28142208155380 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 8142208155380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9509038156800).

8142208155380 is an abundant number, since it is smaller than the sum of its proper divisors (10875868158220).

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

8142208155380 is a wasteful number, since it uses less digits than its factorization.

8142208155380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540129 (or 540127 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 47.

The spelling of 8142208155380 in words is "eight trillion, one hundred forty-two billion, two hundred eight million, one hundred fifty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 31 52 62 65 124 130 155 260 310 403 620 806 1612 1877 2015 3754 4030 7508 8060 9385 18770 24401 37540 48802 58187 97604 116374 122005 232748 244010 290935 488020 538199 581870 756431 1076398 1163740 1512862 2152796 2690995 3025724 3782155 5381990 6996587 7564310 10763980 13993174 15128620 16684169 27986348 33368338 34982935 66736676 69965870 83420845 139931740 166841690 216894197 333683380 433788394 867576788 1010199523 1084470985 2020399046 2168941970 4040798092 4337883940 5050997615 10101995230 13132593799 20203990460 26265187598 31316185213 52530375196 62632370426 65662968995 125264740852 131325937990 156580926065 262651875980 313161852130 407110407769 626323704260 814220815538 1628441631076 2035552038845 4071104077690 8142208155380