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13440201 = 319235793
BaseRepresentation
bin110011010001…
…010011001001
3221021211111020
4303101103021
511420041301
61200023053
7222145155
oct63212311
927254436
1013440201
11764a905
124601a89
132a276a8
141adc065
1512a7436
hexcd14c9

13440201 has 8 divisors (see below), whose sum is σ = 18863520. Its totient is φ = 8488512.

The previous prime is 13440199. The next prime is 13440221. The reversal of 13440201 is 10204431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13440201 - 21 = 13440199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13440221) 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, 117840 + ... + 117953.

It is an arithmetic number, because the mean of its divisors is an integer number (2357940).

Almost surely, 213440201 is an apocalyptic number.

It is an amenable number.

13440201 is a deficient number, since it is larger than the sum of its proper divisors (5423319).

13440201 is a wasteful number, since it uses less digits than its factorization.

13440201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235815.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 13440201 is about 3666.0879694846. The cubic root of 13440201 is about 237.7580633510.

Adding to 13440201 its reverse (10204431), we get a palindrome (23644632).

The spelling of 13440201 in words is "thirteen million, four hundred forty thousand, two hundred one".

Divisors: 1 3 19 57 235793 707379 4480067 13440201