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9006049805 = 59929181409
BaseRepresentation
bin10000110001100110…
…10110101000001101
3212020122110201210012
420120303112220031
5121421022043210
64045354523005
7436115105654
oct103063265015
925218421705
109006049805
113901753575
1218b4136465
13b06abab6c
1461614c19b
1537a9c4305
hex218cd6a0d

9006049805 has 8 divisors (see below), whose sum is σ = 10808407800. Its totient is φ = 7204074496.

The previous prime is 9006049783. The next prime is 9006049813. The reversal of 9006049805 is 5089406009.

It can be written as a sum of positive squares in 4 ways, for example, as 2012240164 + 6993809641 = 44858^2 + 83629^2 .

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 9006049805 - 210 = 9006048781 is a prime.

It is a super-2 number, since 2×90060498052 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 41060 + ... + 140349.

It is an arithmetic number, because the mean of its divisors is an integer number (1351050975).

Almost surely, 29006049805 is an apocalyptic number.

It is an amenable number.

9006049805 is a deficient number, since it is larger than the sum of its proper divisors (1802357995).

9006049805 is a wasteful number, since it uses less digits than its factorization.

9006049805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191343.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 9006049805 is about 94900.2097205270. The cubic root of 9006049805 is about 2080.5497964921.

The spelling of 9006049805 in words is "nine billion, six million, forty-nine thousand, eight hundred five".

Divisors: 1 5 9929 49645 181409 907045 1801209961 9006049805