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6890486080 = 26576928001
BaseRepresentation
bin1100110101011010…
…00111100101000000
3122210012122221221011
412122231013211000
5103102431023310
63055423010304
7332516110462
oct63255074500
918705587834
106890486080
112a165551a5
121403739994
1385a710bca
144951b0132
152a4dd578a
hex19ab47940

6890486080 has 56 divisors (see below), whose sum is σ = 16429893480. Its totient is φ = 2752512000.

The previous prime is 6890486051. The next prime is 6890486081. The reversal of 6890486080 is 806840986.

It can be written as a sum of positive squares in 4 ways, for example, as 866242624 + 6024243456 = 29432^2 + 77616^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6890486081) 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, 232080 + ... + 260080.

It is an arithmetic number, because the mean of its divisors is an integer number (293390955).

Almost surely, 26890486080 is an apocalyptic number.

It is an amenable number.

6890486080 is an abundant number, since it is smaller than the sum of its proper divisors (9539407400).

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

6890486080 is a wasteful number, since it uses less digits than its factorization.

6890486080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28787 (or 28777 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 6890486080 is about 83008.9518064166. The cubic root of 6890486080 is about 1902.9028646157.

The spelling of 6890486080 in words is "six billion, eight hundred ninety million, four hundred eighty-six thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 769 1538 3076 3845 6152 7690 12304 15380 24608 28001 30760 49216 56002 61520 112004 123040 140005 224008 246080 280010 448016 560020 896032 1120040 1792064 2240080 4480160 8960320 21532769 43065538 86131076 107663845 172262152 215327690 344524304 430655380 689048608 861310760 1378097216 1722621520 3445243040 6890486080