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3781608841 = 67139491827
BaseRepresentation
bin1110000101100110…
…1100010110001001
3100202112202122002201
43201121230112021
530221042440331
61423125000201
7162466100443
oct34131542611
910675678081
103781608841
11167068a76a
12896553061
134835c838a
1427c345493
15171ed6a61
hexe166c589

3781608841 has 16 divisors (see below), whose sum is σ = 3878219520. Its totient is φ = 3686371920.

The previous prime is 3781608839. The next prime is 3781608851. The reversal of 3781608841 is 1488061873.

It is a cyclic number.

It is not a de Polignac number, because 3781608841 - 21 = 3781608839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3781608791 and 3781608800.

It is not an unprimeable number, because it can be changed into a prime (3781608821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4572270 + ... + 4573096.

It is an arithmetic number, because the mean of its divisors is an integer number (242388720).

Almost surely, 23781608841 is an apocalyptic number.

It is an amenable number.

3781608841 is a deficient number, since it is larger than the sum of its proper divisors (96610679).

3781608841 is a wasteful number, since it uses less digits than its factorization.

3781608841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524.

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 3781608841 is about 61494.7871042741. The cubic root of 3781608841 is about 1557.9692017852.

The spelling of 3781608841 in words is "three billion, seven hundred eighty-one million, six hundred eight thousand, eight hundred forty-one".

Divisors: 1 67 139 491 827 9313 32897 55409 68249 114953 406057 4572683 7701851 27205819 56441923 3781608841