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6478425005 = 51399668077
BaseRepresentation
bin1100000100010010…
…01110101110101101
3121201111022002101212
412002021032232231
5101231434100010
62550503044205
7316353463313
oct60211165655
917644262355
106478425005
1128249a1658
121309740665
137c32388a0
1445658a0b3
1527db3d505
hex18224ebad

6478425005 has 8 divisors (see below), whose sum is σ = 8372118552. Its totient is φ = 4784067648.

The previous prime is 6478425001. The next prime is 6478425013. The reversal of 6478425005 is 5005248746.

It can be written as a sum of positive squares in 4 ways, for example, as 1277419081 + 5201005924 = 35741^2 + 72118^2 .

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 6478425005 - 22 = 6478425001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6478425001) 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, 49833974 + ... + 49834103.

It is an arithmetic number, because the mean of its divisors is an integer number (1046514819).

Almost surely, 26478425005 is an apocalyptic number.

6478425005 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6478425005 is a deficient number, since it is larger than the sum of its proper divisors (1893693547).

6478425005 is a wasteful number, since it uses less digits than its factorization.

6478425005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99668095.

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 6478425005 is about 80488.6638291381. The cubic root of 6478425005 is about 1864.1884457881.

The spelling of 6478425005 in words is "six billion, four hundred seventy-eight million, four hundred twenty-five thousand, five".

Divisors: 1 5 13 65 99668077 498340385 1295685001 6478425005