Search a number
-
+
38627655869 = 113511605079
BaseRepresentation
bin100011111110011000…
…110100000010111101
310200201000202020021002
4203332120310002331
51113102134441434
625424552420045
72535141441335
oct437630640275
9120630666232
1038627655869
1115422339640
1275a03a7625
133847967b0a
141c262180c5
1510112a657e
hex8fe6340bd

38627655869 has 4 divisors (see below), whose sum is σ = 42139260960. Its totient is φ = 35116050780.

The previous prime is 38627655841. The next prime is 38627655907. The reversal of 38627655869 is 96855672683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38627655869 - 28 = 38627655613 is a prime.

It is a super-2 number, since 2×386276558692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38627655809) 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 3 ways as a sum of consecutive naturals, for example, 1755802529 + ... + 1755802550.

It is an arithmetic number, because the mean of its divisors is an integer number (10534815240).

Almost surely, 238627655869 is an apocalyptic number.

It is an amenable number.

38627655869 is a deficient number, since it is larger than the sum of its proper divisors (3511605091).

38627655869 is a wasteful number, since it uses less digits than its factorization.

38627655869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3511605090.

The product of its digits is 130636800, while the sum is 65.

It can be divided in two parts, 38627 and 655869, that added together give a palindrome (694496).

The spelling of 38627655869 in words is "thirty-eight billion, six hundred twenty-seven million, six hundred fifty-five thousand, eight hundred sixty-nine".

Divisors: 1 11 3511605079 38627655869