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12812448 = 2531121103
BaseRepresentation
bin110000111000…
…000010100000
3220002221101010
4300320002200
511234444243
61134340520
7213622035
oct60700240
926087333
1012812448
117261200
12435a740
132867a3c
1419b738c
1511d1433
hexc380a0

12812448 has 72 divisors (see below), whose sum is σ = 37001664. Its totient is φ = 3879040.

The previous prime is 12812419. The next prime is 12812473. The reversal of 12812448 is 84421821.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11065 + ... + 12167.

It is an arithmetic number, because the mean of its divisors is an integer number (513912).

Almost surely, 212812448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12812448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18500832).

12812448 is an abundant number, since it is smaller than the sum of its proper divisors (24189216).

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

12812448 is a wasteful number, since it uses less digits than its factorization.

12812448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1119 counting only the distinct ones).

The product of its digits is 4096, while the sum is 30.

The square root of 12812448 is about 3579.4480021366. The cubic root of 12812448 is about 233.9972240156.

The spelling of 12812448 in words is "twelve million, eight hundred twelve thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 121 132 176 242 264 352 363 484 528 726 968 1056 1103 1452 1936 2206 2904 3309 3872 4412 5808 6618 8824 11616 12133 13236 17648 24266 26472 35296 36399 48532 52944 72798 97064 105888 133463 145596 194128 266926 291192 388256 400389 533852 582384 800778 1067704 1164768 1601556 2135408 3203112 4270816 6406224 12812448