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20343754110020 = 22511101915560491
BaseRepresentation
bin1001010000000101001100…
…01111001011010001000100
32200000211210012110121201012
410220002212033023101010
510131303002023010040
6111133442553421352
74166534122525235
oct450024617132104
980024705417635
1020343754110020
11653381291a840
12234690a10a858
13b4753bb82873
1450490039508c
152542c38d0865
hex1280a63cb444

20343754110020 has 48 divisors (see below), whose sum is σ = 47067133772736. Its totient is φ = 7324483920000.

The previous prime is 20343754109947. The next prime is 20343754110047. The reversal of 20343754110020 is 2001145734302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457758026 + ... + 457802465.

It is an arithmetic number, because the mean of its divisors is an integer number (980565286932).

Almost surely, 220343754110020 is an apocalyptic number.

20343754110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20343754110020 is an abundant number, since it is smaller than the sum of its proper divisors (26723379662716).

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

20343754110020 is a wasteful number, since it uses less digits than its factorization.

20343754110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915560612 (or 915560610 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 20343754110020 its reverse (2001145734302), we get a palindrome (22344899844322).

The spelling of 20343754110020 in words is "twenty trillion, three hundred forty-three billion, seven hundred fifty-four million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 101 110 202 220 404 505 1010 1111 2020 2222 4444 5555 11110 22220 915560491 1831120982 3662241964 4577802455 9155604910 10071165401 18311209820 20142330802 40284661604 50355827005 92471609591 100711654010 184943219182 201423308020 369886438364 462358047955 924716095910 1017187705501 1849432191820 2034375411002 4068750822004 5085938527505 10171877055010 20343754110020