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12248561 = 138391123
BaseRepresentation
bin101110101110…
…010111110001
3212001021212102
4232232113301
511113423221
61114310145
7206053043
oct56562761
925037772
1012248561
116a06586
124128355
1326cb190
1418aba93
15111e30b
hexbae5f1

12248561 has 8 divisors (see below), whose sum is σ = 13218240. Its totient is φ = 11282832.

The previous prime is 12248557. The next prime is 12248567. The reversal of 12248561 is 16584221.

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 12248561 - 22 = 12248557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12248567) 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, 10346 + ... + 11468.

It is an arithmetic number, because the mean of its divisors is an integer number (1652280).

Almost surely, 212248561 is an apocalyptic number.

It is an amenable number.

12248561 is a deficient number, since it is larger than the sum of its proper divisors (969679).

12248561 is a wasteful number, since it uses less digits than its factorization.

12248561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975.

The product of its digits is 3840, while the sum is 29.

The square root of 12248561 is about 3499.7944225340. The cubic root of 12248561 is about 230.5127878306.

The spelling of 12248561 in words is "twelve million, two hundred forty-eight thousand, five hundred sixty-one".

Divisors: 1 13 839 1123 10907 14599 942197 12248561