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20013044031420 = 223511246831228489
BaseRepresentation
bin1001000110011101001100…
…11000010101111110111100
32121212020011110002221212120
410203032212120111332330
510110343203233001140
6110321510541002540
74133615613324666
oct443164630257674
977766143087776
1020013044031420
1164165366869a0
1222b27b3b53450
13b222b683121b
144d28ca7a9536
1524a8ba0d41d0
hex1233a6615fbc

20013044031420 has 96 divisors (see below), whose sum is σ = 61133279074560. Its totient is φ = 4851446530560.

The previous prime is 20013044031353. The next prime is 20013044031469. The reversal of 20013044031420 is 2413044031002.

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, 15676536 + ... + 16905024.

It is an arithmetic number, because the mean of its divisors is an integer number (636804990360).

Almost surely, 220013044031420 is an apocalyptic number.

20013044031420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20013044031420 is an abundant number, since it is smaller than the sum of its proper divisors (41120235043140).

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

20013044031420 is a wasteful number, since it uses less digits than its factorization.

20013044031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253195 (or 1253193 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20013044031420 its reverse (2413044031002), we get a palindrome (22426088062422).

The spelling of 20013044031420 in words is "twenty trillion, thirteen billion, forty-four million, thirty-one thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 24683 49366 74049 98732 123415 148098 246830 271513 296196 370245 493660 543026 740490 814539 1086052 1228489 1357565 1480980 1629078 2456978 2715130 3258156 3685467 4072695 4913956 5430260 6142445 7370934 8145390 12284890 13513379 14741868 16290780 18427335 24569780 27026758 36854670 40540137 54053516 67566895 73709340 81080274 135133790 162160548 202700685 270267580 405401370 810802740 30322793987 60645587974 90968381961 121291175948 151613969935 181936763922 303227939870 333550733857 363873527844 454841909805 606455879740 667101467714 909683819610 1000652201571 1334202935428 1667753669285 1819367639220 2001304403142 3335507338570 4002608806284 5003261007855 6671014677140 10006522015710 20013044031420