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20863007041 = 73285794617
BaseRepresentation
bin10011011011100010…
…000011100101000001
31222211222102120100111
4103123202003211001
5320211412211131
613330114351321
71336001430262
oct233342034501
958758376314
1020863007041
118936694a88
124062b8b541
131c7641b3a6
14101cb72969
158218dbab1
hex4db883941

20863007041 has 4 divisors (see below), whose sum is σ = 21148801732. Its totient is φ = 20577212352.

The previous prime is 20863007023. The next prime is 20863007047. The reversal of 20863007041 is 14070036802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14757147441 + 6105859600 = 121479^2 + 78140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20863007041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20863006994 and 20863007012.

It is not an unprimeable number, because it can be changed into a prime (20863007047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142897236 + ... + 142897381.

It is an arithmetic number, because the mean of its divisors is an integer number (5287200433).

Almost surely, 220863007041 is an apocalyptic number.

It is an amenable number.

20863007041 is a deficient number, since it is larger than the sum of its proper divisors (285794691).

20863007041 is an equidigital number, since it uses as much as digits as its factorization.

20863007041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285794690.

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 20863007041 in words is "twenty billion, eight hundred sixty-three million, seven thousand, forty-one".

Divisors: 1 73 285794617 20863007041