Search a number
-
+
13212001 = 118111481
BaseRepresentation
bin110010011001…
…100101100001
3220212020110101
4302121211201
511340241001
61151102401
7220204645
oct62314541
926766411
1013212001
117504410
124511a01
13297786a
141a7cc25
15125ea01
hexc99961

13212001 has 8 divisors (see below), whose sum is σ = 14440608. Its totient is φ = 11988000.

The previous prime is 13211993. The next prime is 13212007. The reversal of 13212001 is 10021231.

13212001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13212001 - 23 = 13211993 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13212007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8181 + ... + 9661.

It is an arithmetic number, because the mean of its divisors is an integer number (1805076).

Almost surely, 213212001 is an apocalyptic number.

13212001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13212001 is a deficient number, since it is larger than the sum of its proper divisors (1228607).

13212001 is a wasteful number, since it uses less digits than its factorization.

13212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 13212001 is about 3634.8316329646. The cubic root of 13212001 is about 236.4047504731.

Adding to 13212001 its reverse (10021231), we get a palindrome (23233232).

The spelling of 13212001 in words is "thirteen million, two hundred twelve thousand, one".

Divisors: 1 11 811 1481 8921 16291 1201091 13212001