Search a number
-
+
8061990912000 = 2143453232113
BaseRepresentation
bin111010101010001010000…
…0110101100000000000000
31001112201102000020000110000
41311110110012230000000
52024041424133141000
625051343312240000
71461313436035134
oct165242406540000
931481360200400
108061990912000
11262908676aa13
12aa2574540000
1346631c965c8c
141dc2b97033c4
15dea9e383000
hex755141ac000

8061990912000 has 1200 divisors, whose sum is σ = 31380717880512. Its totient is φ = 2055418675200.

The previous prime is 8061990911999. The next prime is 8061990912011. The reversal of 8061990912000 is 2190991608.

8061990912000 is a `hidden beast` number, since 8 + 0 + 619 + 9 + 0 + 9 + 1 + 20 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1200).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3815422944 + ... + 3815425056.

Almost surely, 28061990912000 is an apocalyptic number.

8061990912000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8061990912000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15690358940256).

8061990912000 is an abundant number, since it is smaller than the sum of its proper divisors (23318726968512).

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

8061990912000 is an equidigital number, since it uses as much as digits as its factorization.

8061990912000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 8061990912000 in words is "eight trillion, sixty-one billion, nine hundred ninety million, nine hundred twelve thousand".