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3786893249 = 19210490009
BaseRepresentation
bin1110000110110111…
…0110011111000001
3100202220201002221112
43201231312133001
530223421040444
61423434133105
7162562030046
oct34155663701
910686632845
103786893249
111673669a47
12898281195
13484728749
1427cd1d1cd
151726cc69e
hexe1b767c1

3786893249 has 6 divisors (see below), whose sum is σ = 3996693810. Its totient is φ = 3587582736.

The previous prime is 3786893233. The next prime is 3786893261. The reversal of 3786893249 is 9423986873.

It can be written as a sum of positive squares in only one way, i.e., 3004684225 + 782209024 = 54815^2 + 27968^2 .

It is not a de Polignac number, because 3786893249 - 24 = 3786893233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3786893219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5244644 + ... + 5245365.

It is an arithmetic number, because the mean of its divisors is an integer number (666115635).

Almost surely, 23786893249 is an apocalyptic number.

It is an amenable number.

3786893249 is a deficient number, since it is larger than the sum of its proper divisors (209800561).

3786893249 is a wasteful number, since it uses less digits than its factorization.

3786893249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10490047 (or 10490028 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 59.

The square root of 3786893249 is about 61537.7384131071. The cubic root of 3786893249 is about 1558.6945643965.

The spelling of 3786893249 in words is "three billion, seven hundred eighty-six million, eight hundred ninety-three thousand, two hundred forty-nine".

Divisors: 1 19 361 10490009 199310171 3786893249