Search a number
-
+
12871101 = 310973911
BaseRepresentation
bin110001000110…
…010110111101
3220012220211110
4301012112331
511243333401
61135512233
7214255035
oct61062675
926186743
1012871101
1172a1281
124388679
132888649
1419d08c5
1511e39d6
hexc465bd

12871101 has 8 divisors (see below), whose sum is σ = 17181504. Its totient is φ = 8570720.

The previous prime is 12871097. The next prime is 12871109. The reversal of 12871101 is 10117821.

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 12871101 - 22 = 12871097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12871109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336 + ... + 5246.

It is an arithmetic number, because the mean of its divisors is an integer number (2147688).

Almost surely, 212871101 is an apocalyptic number.

It is an amenable number.

12871101 is a deficient number, since it is larger than the sum of its proper divisors (4310403).

12871101 is a wasteful number, since it uses less digits than its factorization.

12871101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011.

The product of its (nonzero) digits is 112, while the sum is 21.

The square root of 12871101 is about 3587.6316700576. The cubic root of 12871101 is about 234.3537457704.

Adding to 12871101 its reverse (10117821), we get a palindrome (22988922).

The spelling of 12871101 in words is "twelve million, eight hundred seventy-one thousand, one hundred one".

Divisors: 1 3 1097 3291 3911 11733 4290367 12871101