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3868049811 = 319161342071
BaseRepresentation
bin1110011010001101…
…1100000110010011
3100222120102021211010
43212203130012103
530410210043221
61435453422003
7164565611103
oct34643340623
910876367733
103868049811
11170546008a
128bb49a903
134984a2392
14289a07203
151798adc76
hexe68dc193

3868049811 has 16 divisors (see below), whose sum is σ = 5432336640. Its totient is φ = 2441406240.

The previous prime is 3868049791. The next prime is 3868049813. The reversal of 3868049811 is 1189408683.

3868049811 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3868049811 - 210 = 3868048787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3868049813) 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, 70906 + ... + 112976.

It is an arithmetic number, because the mean of its divisors is an integer number (339521040).

Almost surely, 23868049811 is an apocalyptic number.

3868049811 is a deficient number, since it is larger than the sum of its proper divisors (1564286829).

3868049811 is a wasteful number, since it uses less digits than its factorization.

3868049811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43706.

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 3868049811 is about 62193.6476740189. The cubic root of 3868049811 is about 1569.7507022992.

The spelling of 3868049811 in words is "three billion, eight hundred sixty-eight million, forty-nine thousand, eight hundred eleven".

Divisors: 1 3 19 57 1613 4839 30647 42071 91941 126213 799349 2398047 67860523 203581569 1289349937 3868049811