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13670243 = 131241433
BaseRepresentation
bin110100001001…
…011101100011
3221201112001022
4310021131203
511444421433
61205000055
7224123636
oct64113543
927645038
1013670243
117797724
1246b302b
132aa8302
141b5bc1d
151300698
hexd09763

13670243 has 8 divisors (see below), whose sum is σ = 13863696. Its totient is φ = 13478400.

The previous prime is 13670221. The next prime is 13670297. The reversal of 13670243 is 34207631.

13670243 is digitally balanced in base 2, 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 13670243 - 214 = 13653859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13670143) 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, 31355 + ... + 31787.

It is an arithmetic number, because the mean of its divisors is an integer number (1732962).

Almost surely, 213670243 is an apocalyptic number.

13670243 is a deficient number, since it is larger than the sum of its proper divisors (193453).

13670243 is a wasteful number, since it uses less digits than its factorization.

13670243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 13670243 is about 3697.3291711721. The cubic root of 13670243 is about 239.1068830948.

Adding to 13670243 its reverse (34207631), we get a palindrome (47877874).

The spelling of 13670243 in words is "thirteen million, six hundred seventy thousand, two hundred forty-three".

Divisors: 1 131 241 433 31571 56723 104353 13670243