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12480028 = 2211283637
BaseRepresentation
bin101111100110…
…111000011100
3212111001101021
4233212320130
511143330103
61123253524
7211035631
oct57467034
925431337
1012480028
117054480
12421a2a4
13277c642
14192c188
151167bbd
hexbe6e1c

12480028 has 12 divisors (see below), whose sum is σ = 23825592. Its totient is φ = 5672720.

The previous prime is 12479993. The next prime is 12480029. The reversal of 12480028 is 82008421.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12479984 and 12480011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12480029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141775 + ... + 141862.

It is an arithmetic number, because the mean of its divisors is an integer number (1985466).

Almost surely, 212480028 is an apocalyptic number.

It is an amenable number.

12480028 is a deficient number, since it is larger than the sum of its proper divisors (11345564).

12480028 is a wasteful number, since it uses less digits than its factorization.

12480028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283652 (or 283650 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 12480028 is about 3532.7083094985. The cubic root of 12480028 is about 231.9557733769.

Adding to 12480028 its reverse (82008421), we get a palindrome (94488449).

The spelling of 12480028 in words is "twelve million, four hundred eighty thousand, twenty-eight".

Divisors: 1 2 4 11 22 44 283637 567274 1134548 3120007 6240014 12480028