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13289670 = 23651823
BaseRepresentation
bin110010101100…
…100011000110
3221000012000000
4302230203012
511400232140
61152502130
7220650252
oct62544306
927005000
1013289670
1175577a9
12454a946
1329a4014
141a9d262
151277a30
hexcac8c6

13289670 has 56 divisors (see below), whose sum is σ = 35885376. Its totient is φ = 3541968.

The previous prime is 13289663. The next prime is 13289671. The reversal of 13289670 is 7698231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13289671) 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 27 ways as a sum of consecutive naturals, for example, 6379 + ... + 8201.

Almost surely, 213289670 is an apocalyptic number.

13289670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 3645×3646.

It is a practical number, because each smaller number is the sum of distinct divisors of 13289670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17942688).

13289670 is an abundant number, since it is smaller than the sum of its proper divisors (22595706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13289670 is an equidigital number, since it uses as much as digits as its factorization.

13289670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 13289670 is about 3645.4999657112. The cubic root of 13289670 is about 236.8670942055.

The spelling of 13289670 in words is "thirteen million, two hundred eighty-nine thousand, six hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 729 810 1215 1458 1823 2430 3645 3646 5469 7290 9115 10938 16407 18230 27345 32814 49221 54690 82035 98442 147663 164070 246105 295326 442989 492210 738315 885978 1328967 1476630 2214945 2657934 4429890 6644835 13289670