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3680307686 = 211215207883
BaseRepresentation
bin1101101101011101…
…0000100111100110
3100111111011000001002
43123113100213212
530014124321221
61405105433302
7160126046006
oct33327204746
910444130032
103680307686
11161948a700
1286863b832
1346861a573
1426cad6006
1516817680b
hexdb5d09e6

3680307686 has 12 divisors (see below), whose sum is σ = 6067945716. Its totient is φ = 1672867020.

The previous prime is 3680307677. The next prime is 3680307689. The reversal of 3680307686 is 6867030863.

It is a self number, because there is not a number n which added to its sum of digits gives 3680307686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3680307689) 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, 7603700 + ... + 7604183.

It is an arithmetic number, because the mean of its divisors is an integer number (505662143).

Almost surely, 23680307686 is an apocalyptic number.

3680307686 is a deficient number, since it is larger than the sum of its proper divisors (2387638030).

3680307686 is a wasteful number, since it uses less digits than its factorization.

3680307686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15207907 (or 15207896 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The square root of 3680307686 is about 60665.5395261593. The cubic root of 3680307686 is about 1543.9315530142.

The spelling of 3680307686 in words is "three billion, six hundred eighty million, three hundred seven thousand, six hundred eighty-six".

Divisors: 1 2 11 22 121 242 15207883 30415766 167286713 334573426 1840153843 3680307686