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20741140273 = 726121132887
BaseRepresentation
bin10011010100010001…
…001010111100110001
31222112111010002120111
4103110101022330301
5314434212442043
613310042341321
71332661532500
oct232421127461
958474102514
1020741140273
118883918747
12402a1ba841
131c570bc889
14100a8cc837
15815d6809d
hex4d444af31

20741140273 has 24 divisors (see below), whose sum is σ = 24639952704. Its totient is φ = 17403271200.

The previous prime is 20741140253. The next prime is 20741140289. The reversal of 20741140273 is 37204114702.

It is not a de Polignac number, because 20741140273 - 233 = 12151205681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20741140223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 614236 + ... + 647122.

It is an arithmetic number, because the mean of its divisors is an integer number (1026664696).

Almost surely, 220741140273 is an apocalyptic number.

It is an amenable number.

20741140273 is a deficient number, since it is larger than the sum of its proper divisors (3898812431).

20741140273 is a wasteful number, since it uses less digits than its factorization.

20741140273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33173 (or 33166 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

Adding to 20741140273 its reverse (37204114702), we get a palindrome (57945254975).

The spelling of 20741140273 in words is "twenty billion, seven hundred forty-one million, one hundred forty thousand, two hundred seventy-three".

Divisors: 1 7 49 61 211 427 1477 2989 10339 12871 32887 90097 230209 630679 1611463 2006107 6939157 14042749 48574099 98299243 340018693 423288577 2963020039 20741140273