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987968218308 = 223972413521867
BaseRepresentation
bin11100110000001110111…
…11101010010011000100
310111110010012111120211220
432120013133222103010
5112141324330441213
62033511043400340
7131243526203211
oct16300737522304
93443105446756
10987968218308
11350aa4337265
1213b5846830b0
137221b6870a6
1435b64514b08
151aa75318e23
hexe6077ea4c4

987968218308 has 48 divisors (see below), whose sum is σ = 2338689401664. Its totient is φ = 324575170560.

The previous prime is 987968218291. The next prime is 987968218309. The reversal of 987968218308 is 803812869789.

987968218308 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (987968218309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1480410 + ... + 2041457.

It is an arithmetic number, because the mean of its divisors is an integer number (48722695868).

Almost surely, 2987968218308 is an apocalyptic number.

It is an amenable number.

987968218308 is an abundant number, since it is smaller than the sum of its proper divisors (1350721183356).

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

987968218308 is a wasteful number, since it uses less digits than its factorization.

987968218308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522212 (or 3522210 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 69.

The spelling of 987968218308 in words is "nine hundred eighty-seven billion, nine hundred sixty-eight million, two hundred eighteen thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 97 194 241 291 388 482 582 723 964 1164 1446 2892 23377 46754 70131 93508 140262 280524 3521867 7043734 10565601 14087468 21131202 42262404 341621099 683242198 848769947 1024863297 1366484396 1697539894 2049726594 2546309841 3395079788 4099453188 5092619682 10185239364 82330684859 164661369718 246992054577 329322739436 493984109154 987968218308