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1980520262084 = 2271350330193583
BaseRepresentation
bin11100110100100000001…
…101001110100111000100
321000100001212021122010102
4130310200031032213010
5224422101141341314
64113501034343232
7263042065315160
oct34644015164704
97010055248112
101980520262084
116a3a30068431
1227ba0828ab18
131149ba8b7330
146bc01715ca0
15367b7c7d5de
hex1cd2034e9c4

1980520262084 has 96 divisors (see below), whose sum is σ = 4276825620480. Its totient is φ = 781467689088.

The previous prime is 1980520262081. The next prime is 1980520262131. The reversal of 1980520262084 is 4802620250891.

It is not an unprimeable number, because it can be changed into a prime (1980520262081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 552752957 + ... + 552756539.

It is an arithmetic number, because the mean of its divisors is an integer number (44550266880).

Almost surely, 21980520262084 is an apocalyptic number.

1980520262084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1980520262084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2138412810240).

1980520262084 is an abundant number, since it is smaller than the sum of its proper divisors (2296305358396).

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

1980520262084 is a wasteful number, since it uses less digits than its factorization.

1980520262084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7129 (or 7127 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 1980520262084 in words is "one trillion, nine hundred eighty billion, five hundred twenty million, two hundred sixty-two thousand, eighty-four".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 503 1006 2012 3019 3521 3583 6038 6539 7042 7166 12076 13078 14084 14332 21133 25081 26156 39247 42266 45773 46579 50162 78494 84532 91546 93158 100324 156988 183092 186316 274729 326053 549458 652106 1098916 1304212 1518557 1802249 3037114 3604498 6074228 7208996 10629899 10817077 12615743 19741241 21259798 21634154 23429237 25231486 39482482 42519596 43268308 46858474 50462972 75719539 78964964 93716948 138188687 140622001 151439078 164004659 276377374 281244002 302878156 328009318 552754748 562488004 656018636 984354007 1968708014 3937416028 5440989731 10881979462 21763958924 38086928117 70732866503 76173856234 141465733006 152347712468 282931466012 495130065521 990260131042 1980520262084