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49381 = 1923113
BaseRepresentation
bin1100000011100101
32111201221
430003211
53040011
61020341
7263653
oct140345
974657
1049381
1134112
12246b1
1319627
1413dd3
15e971
hexc0e5

49381 has 8 divisors (see below), whose sum is σ = 54720. Its totient is φ = 44352.

The previous prime is 49369. The next prime is 49391. The reversal of 49381 is 18394.

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 49381 - 27 = 49253 is a prime.

It is a super-2 number, since 2×493812 = 4876966322, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49331) 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 7 ways as a sum of consecutive naturals, for example, 381 + ... + 493.

It is an arithmetic number, because the mean of its divisors is an integer number (6840).

249381 is an apocalyptic number.

It is an amenable number.

49381 is a deficient number, since it is larger than the sum of its proper divisors (5339).

49381 is a wasteful number, since it uses less digits than its factorization.

49381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155.

The product of its digits is 864, while the sum is 25.

The square root of 49381 is about 222.2183610776. The cubic root of 49381 is about 36.6876555681.

The spelling of 49381 in words is "forty-nine thousand, three hundred eighty-one".

Divisors: 1 19 23 113 437 2147 2599 49381