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12745488 = 243725419
BaseRepresentation
bin110000100111…
…101100010000
3212222112112010
4300213230100
511230323423
61133102520
7213222600
oct60475420
925875463
1012745488
117215968
124327a40
132843412
14199ac00
1511bb693
hexc27b10

12745488 has 60 divisors (see below), whose sum is σ = 38308560. Its totient is φ = 3640896.

The previous prime is 12745483. The next prime is 12745541. The reversal of 12745488 is 88454721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12745483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 358 + ... + 5061.

It is an arithmetic number, because the mean of its divisors is an integer number (638476).

Almost surely, 212745488 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 12745488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19154280).

12745488 is an abundant number, since it is smaller than the sum of its proper divisors (25563072).

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

12745488 is a wasteful number, since it uses less digits than its factorization.

12745488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5444 (or 5431 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 12745488 is about 3570.0823519913. The cubic root of 12745488 is about 233.5888755883.

The spelling of 12745488 in words is "twelve million, seven hundred forty-five thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 84 98 112 147 168 196 294 336 392 588 784 1176 2352 5419 10838 16257 21676 32514 37933 43352 65028 75866 86704 113799 130056 151732 227598 260112 265531 303464 455196 531062 606928 796593 910392 1062124 1593186 1820784 2124248 3186372 4248496 6372744 12745488