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38776683887 = 661105155817
BaseRepresentation
bin100100000111010001…
…010011110101101111
310201002102011122021022
4210013101103311233
51113403312341022
625451434524355
72541631242344
oct440721236557
9121072148238
1038776683887
1115499477597
1276222966bb
13386c7b6486
141c3bd2c7cb
15101e3e2c42
hex907453d6f

38776683887 has 8 divisors (see below), whose sum is σ = 38872994832. Its totient is φ = 38680488000.

The previous prime is 38776683859. The next prime is 38776683893. The reversal of 38776683887 is 78838667783.

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

It is a cyclic number.

It is not a de Polignac number, because 38776683887 - 210 = 38776682863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38776683887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38776683287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666803 + ... + 722619.

It is an arithmetic number, because the mean of its divisors is an integer number (4859124354).

Almost surely, 238776683887 is an apocalyptic number.

38776683887 is a deficient number, since it is larger than the sum of its proper divisors (96310945).

38776683887 is a wasteful number, since it uses less digits than its factorization.

38776683887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57529.

The product of its digits is 455196672, while the sum is 71.

The spelling of 38776683887 in words is "thirty-eight billion, seven hundred seventy-six million, six hundred eighty-three thousand, eight hundred eighty-seven".

Divisors: 1 661 1051 55817 694711 36895037 58663667 38776683887