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12259993 = 109137821
BaseRepresentation
bin101110110001…
…001010011001
3212001212112211
4232301022121
511114304433
61114435121
7206131264
oct56611231
925055484
1012259993
116a14129
124132aa1
132703445
1418b1cdb
1511228cd
hexbb1299

12259993 has 8 divisors (see below), whose sum is σ = 12477960. Its totient is φ = 12044160.

The previous prime is 12259981. The next prime is 12260033. The reversal of 12259993 is 39995221.

12259993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2039184 + 10220809 = 1428^2 + 3197^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12259993 is a prime.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12209993) 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, 14523 + ... + 15343.

It is an arithmetic number, because the mean of its divisors is an integer number (1559745).

Almost surely, 212259993 is an apocalyptic number.

It is an amenable number.

12259993 is a deficient number, since it is larger than the sum of its proper divisors (217967).

12259993 is a wasteful number, since it uses less digits than its factorization.

12259993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067.

The product of its digits is 43740, while the sum is 40.

The square root of 12259993 is about 3501.4272804101. The cubic root of 12259993 is about 230.5844806814.

The spelling of 12259993 in words is "twelve million, two hundred fifty-nine thousand, nine hundred ninety-three".

Divisors: 1 109 137 821 14933 89489 112477 12259993