Search a number
-
+
38997 = 327619
BaseRepresentation
bin1001100001010101
31222111100
421201111
52221442
6500313
7221460
oct114125
958440
1038997
1127332
121a699
131499a
14102d7
15b84c
hex9855

38997 has 12 divisors (see below), whose sum is σ = 64480. Its totient is φ = 22248.

The previous prime is 38993. The next prime is 39019. The reversal of 38997 is 79983.

It is not a de Polignac number, because 38997 - 22 = 38993 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247 + ... + 372.

238997 is an apocalyptic number.

It is an amenable number.

38997 is a deficient number, since it is larger than the sum of its proper divisors (25483).

38997 is a wasteful number, since it uses less digits than its factorization.

38997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 629 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 38997 is about 197.4765808900. The cubic root of 38997 is about 33.9112448664.

It can be divided in two parts, 38 and 997, that added together give a triangular number (1035 = T45).

The spelling of 38997 in words is "thirty-eight thousand, nine hundred ninety-seven".

Divisors: 1 3 7 9 21 63 619 1857 4333 5571 12999 38997