Search a number
-
+
38809103 = 54770949
BaseRepresentation
bin1001010000001…
…0111000001111
32201000201002012
42110002320033
534413342403
63503451435
7650605034
oct224027017
981021065
1038809103
111a9a7943
1210bb6b7b
13806a788
14522338b
153618ed8
hex2502e0f

38809103 has 4 divisors (see below), whose sum is σ = 38880600. Its totient is φ = 38737608.

The previous prime is 38809087. The next prime is 38809129. The reversal of 38809103 is 30190883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30190883 = 41736363.

It is a cyclic number.

It is not a de Polignac number, because 38809103 - 24 = 38809087 is a prime.

It is a super-2 number, since 2×388091032 = 3012292951329218, which contains 22 as substring.

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 38809103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38809193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34928 + ... + 36021.

It is an arithmetic number, because the mean of its divisors is an integer number (9720150).

Almost surely, 238809103 is an apocalyptic number.

38809103 is a deficient number, since it is larger than the sum of its proper divisors (71497).

38809103 is an equidigital number, since it uses as much as digits as its factorization.

38809103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71496.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 38809103 is about 6229.6952573942. The cubic root of 38809103 is about 338.5669295803.

Adding to 38809103 its reverse (30190883), we get a palindrome (68999986).

The spelling of 38809103 in words is "thirty-eight million, eight hundred nine thousand, one hundred three".

Divisors: 1 547 70949 38809103