Search a number
-
+
20089712448 = 2633135991493
BaseRepresentation
bin10010101101011100…
…001010111101000000
31220212002100010121000
4102231130022331000
5312120431244243
613121252132000
71310561511141
oct225534127500
956762303530
1020089712448
11857a134343
123a88007000
131b82158a20
14d88199ac8
157c8a8c5d3
hex4ad70af40

20089712448 has 224 divisors, whose sum is σ = 63751968000. Its totient is φ = 6166996992.

The previous prime is 20089712443. The next prime is 20089712479. The reversal of 20089712448 is 84421798002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20089712443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13455190 + ... + 13456682.

It is an arithmetic number, because the mean of its divisors is an integer number (284607000).

Almost surely, 220089712448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20089712448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31875984000).

20089712448 is an abundant number, since it is smaller than the sum of its proper divisors (43662255552).

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

20089712448 is a wasteful number, since it uses less digits than its factorization.

20089712448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 20089712448 in words is "twenty billion, eighty-nine million, seven hundred twelve thousand, four hundred forty-eight".