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12248869 = 97197641
BaseRepresentation
bin101110101110…
…011100100101
3212001022021211
4232232130211
511113430434
61114311421
7206053663
oct56563445
925038254
1012248869
116a06836
124128571
1326cb369
1418abc33
15111e464
hexbae725

12248869 has 8 divisors (see below), whose sum is σ = 12457368. Its totient is φ = 12042240.

The previous prime is 12248867. The next prime is 12248879. The reversal of 12248869 is 96884221.

It can be written as a sum of positive squares in 4 ways, for example, as 7784100 + 4464769 = 2790^2 + 2113^2 .

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 12248869 - 21 = 12248867 is a prime.

It is a super-2 number, since 2×122488692 = 300069583558322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12248867) 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, 18789 + ... + 19429.

It is an arithmetic number, because the mean of its divisors is an integer number (1557171).

Almost surely, 212248869 is an apocalyptic number.

It is an amenable number.

12248869 is a deficient number, since it is larger than the sum of its proper divisors (208499).

12248869 is an equidigital number, since it uses as much as digits as its factorization.

12248869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935.

The product of its digits is 55296, while the sum is 40.

The square root of 12248869 is about 3499.8384248419. The cubic root of 12248869 is about 230.5147199581.

The spelling of 12248869 in words is "twelve million, two hundred forty-eight thousand, eight hundred sixty-nine".

Divisors: 1 97 197 641 19109 62177 126277 12248869