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13440170 = 251344017
BaseRepresentation
bin110011010001…
…010010101010
3221021211110002
4303101102222
511420041140
61200023002
7222145112
oct63212252
927254402
1013440170
11764a887
124601a62
132a27683
141adc042
1512a7415
hexcd14aa

13440170 has 8 divisors (see below), whose sum is σ = 24192324. Its totient is φ = 5376064.

The previous prime is 13440121. The next prime is 13440173. The reversal of 13440170 is 7104431.

It can be written as a sum of positive squares in 2 ways, for example, as 13402921 + 37249 = 3661^2 + 193^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13440173) 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 3 ways as a sum of consecutive naturals, for example, 671999 + ... + 672018.

Almost surely, 213440170 is an apocalyptic number.

13440170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13440170 is a deficient number, since it is larger than the sum of its proper divisors (10752154).

13440170 is a wasteful number, since it uses less digits than its factorization.

13440170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344024.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 13440170 is about 3666.0837415422. The cubic root of 13440170 is about 237.7578805535.

It can be divided in two parts, 134 and 40170, that added together give a palindrome (40304).

The spelling of 13440170 in words is "thirteen million, four hundred forty thousand, one hundred seventy".

Divisors: 1 2 5 10 1344017 2688034 6720085 13440170