Search a number
-
+
139017 = 3149311
BaseRepresentation
bin100001111100001001
321001200210
4201330021
513422032
62551333
71116204
oct417411
9231623
10139017
119549a
1268549
134b378
143893b
152b2cc
hex21f09

139017 has 8 divisors (see below), whose sum is σ = 187200. Its totient is φ = 91760.

The previous prime is 138977. The next prime is 139021. The reversal of 139017 is 710931.

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 139017 - 27 = 138889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138984 and 139002.

It is not an unprimeable number, because it can be changed into a prime (139067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292 + ... + 602.

It is an arithmetic number, because the mean of its divisors is an integer number (23400).

2139017 is an apocalyptic number.

It is an amenable number.

139017 is a deficient number, since it is larger than the sum of its proper divisors (48183).

139017 is a wasteful number, since it uses less digits than its factorization.

139017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463.

The product of its (nonzero) digits is 189, while the sum is 21.

The square root of 139017 is about 372.8498357248. The cubic root of 139017 is about 51.8031263797.

Adding to 139017 its reverse (710931), we get a palindrome (849948).

The spelling of 139017 in words is "one hundred thirty-nine thousand, seventeen".

Divisors: 1 3 149 311 447 933 46339 139017