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3680845987 = 71340448857
BaseRepresentation
bin1101101101100101…
…0100000010100011
3100111112011100110011
43123121110002203
530014244032422
61405125145351
7160133450260
oct33331240243
910445140404
103680845987
111619818085
1286885b257
134687785a0
1426cbd6267
15168231077
hexdb6540a3

3680845987 has 8 divisors (see below), whose sum is σ = 4530272096. Its totient is φ = 2912317632.

The previous prime is 3680845969. The next prime is 3680846011. The reversal of 3680845987 is 7895480863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3680845987 - 27 = 3680845859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3680845087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20224338 + ... + 20224519.

It is an arithmetic number, because the mean of its divisors is an integer number (566284012).

Almost surely, 23680845987 is an apocalyptic number.

3680845987 is a deficient number, since it is larger than the sum of its proper divisors (849426109).

3680845987 is a wasteful number, since it uses less digits than its factorization.

3680845987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40448877.

The product of its (nonzero) digits is 11612160, while the sum is 58.

The square root of 3680845987 is about 60669.9759930726. The cubic root of 3680845987 is about 1544.0068238387.

The spelling of 3680845987 in words is "three billion, six hundred eighty million, eight hundred forty-five thousand, nine hundred eighty-seven".

Divisors: 1 7 13 91 40448857 283141999 525835141 3680845987