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20013061427503 = 1021110259191047
BaseRepresentation
bin1001000110011101001110…
…11010101101000100101111
32121212020012122211202210221
410203032213122231010233
510110343222211140003
6110321512401512211
74133616214230304
oct443164732550457
977766178752727
1020013061427503
116416545488921
1222b27b9942667
13b222ba312371
144d28ccc170ab
1524a8bb8bd7bd
hex1233a76ad12f

20013061427503 has 8 divisors (see below), whose sum is σ = 20017077125760. Its totient is φ = 20009046152280.

The previous prime is 20013061427501. The next prime is 20013061427507. The reversal of 20013061427503 is 30572416031002.

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 20013061427503 - 21 = 20013061427501 is a prime.

It is a super-2 number, since 2×200130614275032 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013061427501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104659126 + ... + 104850172.

It is an arithmetic number, because the mean of its divisors is an integer number (2502134640720).

Almost surely, 220013061427503 is an apocalyptic number.

20013061427503 is a deficient number, since it is larger than the sum of its proper divisors (4015698257).

20013061427503 is a wasteful number, since it uses less digits than its factorization.

20013061427503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211517.

The product of its (nonzero) digits is 30240, while the sum is 34.

Adding to 20013061427503 its reverse (30572416031002), we get a palindrome (50585477458505).

The spelling of 20013061427503 in words is "twenty trillion, thirteen billion, sixty-one million, four hundred twenty-seven thousand, five hundred three".

Divisors: 1 10211 10259 191047 104754649 1950780917 1959951173 20013061427503