Search a number
-
+
20132671 = 133149957
BaseRepresentation
bin100110011001…
…1001100111111
31101212211211111
41030303030333
520123221141
61555302451
7333060556
oct114631477
941784744
1020132671
1110400a79
1268aaa27
13422b930
142960d9d
151b7a381
hex133333f

20132671 has 8 divisors (see below), whose sum is σ = 22381184. Its totient is φ = 17984160.

The previous prime is 20132639. The next prime is 20132683. The reversal of 20132671 is 17623102.

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 20132671 - 25 = 20132639 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132611) 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, 24576 + ... + 25381.

It is an arithmetic number, because the mean of its divisors is an integer number (2797648).

Almost surely, 220132671 is an apocalyptic number.

20132671 is a deficient number, since it is larger than the sum of its proper divisors (2248513).

20132671 is a wasteful number, since it uses less digits than its factorization.

20132671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50001.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 20132671 is about 4486.9445060085. The cubic root of 20132671 is about 272.0406468595.

Adding to 20132671 its reverse (17623102), we get a palindrome (37755773).

The spelling of 20132671 in words is "twenty million, one hundred thirty-two thousand, six hundred seventy-one".

Divisors: 1 13 31 403 49957 649441 1548667 20132671