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2685553085 = 51981327109
BaseRepresentation
bin1010000000010010…
…0100100110111101
320221011100020021002
42200010210212331
521000000144320
61122252420045
7123356552555
oct24004444675
96834306232
102685553085
111158a19866
1262b477625
1333a4c8a87
141b6952165
1510ab7e675
hexa01249bd

2685553085 has 8 divisors (see below), whose sum is σ = 3222945240. Its totient is φ = 2148254784.

The previous prime is 2685553021. The next prime is 2685553103. The reversal of 2685553085 is 5803555862.

It can be written as a sum of positive squares in 4 ways, for example, as 57350329 + 2628202756 = 7573^2 + 51266^2 .

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 2685553085 - 26 = 2685553021 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85511 + ... + 112619.

It is an arithmetic number, because the mean of its divisors is an integer number (402868155).

Almost surely, 22685553085 is an apocalyptic number.

It is an amenable number.

2685553085 is a deficient number, since it is larger than the sum of its proper divisors (537392155).

2685553085 is a wasteful number, since it uses less digits than its factorization.

2685553085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46927.

The product of its (nonzero) digits is 1440000, while the sum is 47.

The square root of 2685553085 is about 51822.3222656029. The cubic root of 2685553085 is about 1389.9886279973.

The spelling of 2685553085 in words is "two billion, six hundred eighty-five million, five hundred fifty-three thousand, eighty-five".

Divisors: 1 5 19813 27109 99065 135545 537110617 2685553085