Search a number
-
+
1980260597220 = 2235291138080803
BaseRepresentation
bin11100110100010000101…
…110101011110111100100
321000022101202200021220020
4130310100232223313210
5224421033203102340
64113415201035140
7263032463230563
oct34642056536744
97008352607806
101980260597220
116a3907533374
1227b955325ab0
13114978b6c799
146bbb9041bda
15367a008a9d0
hex1cd10babde4

1980260597220 has 48 divisors (see below), whose sum is σ = 5735927252160. Its totient is φ = 509860199296.

The previous prime is 1980260597207. The next prime is 1980260597261. The reversal of 1980260597220 is 227950620891.

It is a super-2 number, since 2×19802605972202 (a number of 25 digits) contains 22 as substring.

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, 569038662 + ... + 569042141.

It is an arithmetic number, because the mean of its divisors is an integer number (119498484420).

Almost surely, 21980260597220 is an apocalyptic number.

1980260597220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1980260597220 is an abundant number, since it is smaller than the sum of its proper divisors (3755666654940).

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

1980260597220 is a wasteful number, since it uses less digits than its factorization.

1980260597220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138080844 (or 1138080842 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 1980260597220 in words is "one trillion, nine hundred eighty billion, two hundred sixty million, five hundred ninety-seven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 290 348 435 580 870 1740 1138080803 2276161606 3414242409 4552323212 5690404015 6828484818 11380808030 13656969636 17071212045 22761616060 33004343287 34142424090 66008686574 68284848180 99013029861 132017373148 165021716435 198026059722 330043432870 396052119444 495065149305 660086865740 990130298610 1980260597220