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20045110400 = 27527894871
BaseRepresentation
bin10010101010110010…
…000001110010000000
31220201222102010002022
4102222302001302000
5312023022013100
613113020141012
71306510425050
oct225262016200
956658363068
1020045110400
118556a40147
123a75097768
131b75b40593
14d822a9560
157c4bcbe85
hex4aac81c80

20045110400 has 96 divisors (see below), whose sum is σ = 56591705280. Its totient is φ = 6872601600.

The previous prime is 20045110381. The next prime is 20045110411. The reversal of 20045110400 is 401154002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425036 + ... + 469835.

It is an arithmetic number, because the mean of its divisors is an integer number (589496930).

Almost surely, 220045110400 is an apocalyptic number.

20045110400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20045110400 is an abundant number, since it is smaller than the sum of its proper divisors (36546594880).

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

20045110400 is an equidigital number, since it uses as much as digits as its factorization.

20045110400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894902 (or 894885 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 20045110400 its reverse (401154002), we get a palindrome (20446264402).

The spelling of 20045110400 in words is "twenty billion, forty-five million, one hundred ten thousand, four hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 64 70 80 100 112 128 140 160 175 200 224 280 320 350 400 448 560 640 700 800 896 1120 1400 1600 2240 2800 3200 4480 5600 11200 22400 894871 1789742 3579484 4474355 6264097 7158968 8948710 12528194 14317936 17897420 22371775 25056388 28635872 31320485 35794840 44743550 50112776 57271744 62640970 71589680 89487100 100225552 114543488 125281940 143179360 156602425 178974200 200451104 250563880 286358720 313204850 357948400 400902208 501127760 572717440 626409700 715896800 801804416 1002255520 1252819400 1431793600 2004511040 2505638800 2863587200 4009022080 5011277600 10022555200 20045110400