Search a number
-
+
38147 = 371031
BaseRepresentation
bin1001010100000011
31221022212
421110003
52210042
6452335
7216134
oct112403
957285
1038147
112672a
121a0ab
1314495
14dc8b
15b482
hex9503

38147 has 4 divisors (see below), whose sum is σ = 39216. Its totient is φ = 37080.

The previous prime is 38119. The next prime is 38149. The reversal of 38147 is 74183.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74183 = 312393.

It is a cyclic number.

It is not a de Polignac number, because 38147 - 26 = 38083 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 38147.

It is not an unprimeable number, because it can be changed into a prime (38149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479 + ... + 552.

It is an arithmetic number, because the mean of its divisors is an integer number (9804).

238147 is an apocalyptic number.

38147 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

38147 is a deficient number, since it is larger than the sum of its proper divisors (1069).

38147 is a wasteful number, since it uses less digits than its factorization.

38147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068.

The product of its digits is 672, while the sum is 23.

The square root of 38147 is about 195.3125700000. The cubic root of 38147 is about 33.6630500750.

The spelling of 38147 in words is "thirty-eight thousand, one hundred forty-seven".

Divisors: 1 37 1031 38147