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49669239060 = 223257215735869
BaseRepresentation
bin101110010000100001…
…000111000100010100
311202012112102202220200
4232100201013010110
51303210311122220
634452344100500
73405564365100
oct562041070424
9152175382820
1049669239060
111a078a99501
129762164730
1348b73917ac
142592830900
15145a80b890
hexb90847114

49669239060 has 216 divisors, whose sum is σ = 176382690120. Its totient is φ = 11280342528.

The previous prime is 49669239029. The next prime is 49669239071. The reversal of 49669239060 is 6093296694.

49669239060 is a `hidden beast` number, since 496 + 6 + 9 + 2 + 3 + 90 + 60 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9347795856 + 40321443204 = 96684^2 + 200802^2 .

It is a junction number, because it is equal to n+sod(n) for n = 49669238988 and 49669239006.

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 71 ways as a sum of consecutive naturals, for example, 1366806 + ... + 1402674.

Almost surely, 249669239060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49669239060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88191345060).

49669239060 is an abundant number, since it is smaller than the sum of its proper divisors (126713451060).

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

49669239060 is a wasteful number, since it uses less digits than its factorization.

49669239060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36055 (or 36043 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 54.

The spelling of 49669239060 in words is "forty-nine billion, six hundred sixty-nine million, two hundred thirty-nine thousand, sixty".