Search a number
-
+
6890520016000 = 2753430657501
BaseRepresentation
bin110010001000101001011…
…1111110111010010000000
3220101201122012001112212001
41210101102333313102000
51400343241111003000
622353243341313344
71310552336520325
oct144212277672200
926351565045761
106890520016000
112217286a05a25
12933519265854
133aca08aa12ca
1419b708138b4c
15be3890c546a
hex64452ff7480

6890520016000 has 64 divisors (see below), whose sum is σ = 17131555429560. Its totient is φ = 2756208000000.

The previous prime is 6890520015961. The next prime is 6890520016013. The reversal of 6890520016000 is 6100250986.

It can be written as a sum of positive squares in 4 ways, for example, as 2168173790784 + 4722346225216 = 1472472^2 + 2173096^2 .

It is a tau number, because it is divible by the number of its divisors (64).

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, 215312751 + ... + 215344750.

Almost surely, 26890520016000 is an apocalyptic number.

It is an amenable number.

6890520016000 is an abundant number, since it is smaller than the sum of its proper divisors (10241035413560).

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

6890520016000 is an equidigital number, since it uses as much as digits as its factorization.

6890520016000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430657530 (or 430657508 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

Adding to 6890520016000 its reverse (6100250986), we get a palindrome (6896620266986).

The spelling of 6890520016000 in words is "six trillion, eight hundred ninety billion, five hundred twenty million, sixteen thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 640 800 1000 1600 2000 3200 4000 8000 16000 430657501 861315002 1722630004 2153287505 3445260008 4306575010 6890520016 8613150020 10766437525 13781040032 17226300040 21532875050 27562080064 34452600080 43065750100 53832187625 55124160128 68905200160 86131500200 107664375250 137810400320 172263000400 215328750500 275620800640 344526000800 430657501000 689052001600 861315002000 1378104003200 1722630004000 3445260008000 6890520016000