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20043474027980 = 2251377090284723
BaseRepresentation
bin1001000111010101111000…
…01001100100010111001100
32121222010201011111221122012
410203222330021210113030
510111343013322343410
6110343502253240352
74136043654121064
oct443527411442714
977863634457565
1020043474027980
116428431613787
1222b8686a930b8
13b2512600b150
144d4175d863a4
1524b59b849605
hex123abc2645cc

20043474027980 has 24 divisors (see below), whose sum is σ = 45329087417712. Its totient is φ = 7400667333312.

The previous prime is 20043474027923. The next prime is 20043474028003. The reversal of 20043474027980 is 8972047434002.

It is a super-2 number, since 2×200434740279802 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38545142102 + ... + 38545142621.

It is an arithmetic number, because the mean of its divisors is an integer number (1888711975738).

Almost surely, 220043474027980 is an apocalyptic number.

20043474027980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20043474027980 is an abundant number, since it is smaller than the sum of its proper divisors (25285613389732).

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

20043474027980 is a wasteful number, since it uses less digits than its factorization.

20043474027980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77090284745 (or 77090284743 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 20043474027980 in words is "twenty trillion, forty-three billion, four hundred seventy-four million, twenty-seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 77090284723 154180569446 308361138892 385451423615 770902847230 1002173701399 1541805694460 2004347402798 4008694805596 5010868506995 10021737013990 20043474027980