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20041255345 = 515532580973
BaseRepresentation
bin10010101010100011…
…010100100110110001
31220201201011020221111
4102222203110212301
5312021030132340
613112401353321
71306432600606
oct225243244661
956651136844
1020041255345
118554847851
123a73938841
131b750c0997
14d819846ad
157c46b9aea
hex4aa8d49b1

20041255345 has 8 divisors (see below), whose sum is σ = 24065001576. Its totient is φ = 16022674176.

The previous prime is 20041255337. The next prime is 20041255363. The reversal of 20041255345 is 54355214002.

It can be written as a sum of positive squares in 4 ways, for example, as 889249 + 20040366096 = 943^2 + 141564^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20041255345 - 23 = 20041255337 is a prime.

It is a Duffinian number.

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, 1282722 + ... + 1298251.

It is an arithmetic number, because the mean of its divisors is an integer number (3008125197).

Almost surely, 220041255345 is an apocalyptic number.

It is an amenable number.

20041255345 is a deficient number, since it is larger than the sum of its proper divisors (4023746231).

20041255345 is a wasteful number, since it uses less digits than its factorization.

20041255345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582531.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 20041255345 its reverse (54355214002), we get a palindrome (74396469347).

The spelling of 20041255345 in words is "twenty billion, forty-one million, two hundred fifty-five thousand, three hundred forty-five".

Divisors: 1 5 1553 7765 2580973 12904865 4008251069 20041255345