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12948040 = 2357131353
BaseRepresentation
bin110001011001…
…001001001000
3220100211101001
4301121021020
511303314130
61141304344
7215025250
oct61311110
926324331
1012948040
117344066
1244050b4
1328b4681
141a10960
15120b6ca
hexc59248

12948040 has 64 divisors (see below), whose sum is σ = 33644160. Its totient is φ = 4392960.

The previous prime is 12948029. The next prime is 12948041. The reversal of 12948040 is 4084921.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (12948041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36504 + ... + 36856.

It is an arithmetic number, because the mean of its divisors is an integer number (525690).

Almost surely, 212948040 is an apocalyptic number.

12948040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12948040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16822080).

12948040 is an abundant number, since it is smaller than the sum of its proper divisors (20696120).

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

12948040 is a wasteful number, since it uses less digits than its factorization.

12948040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 12948040 is about 3598.3385054772. The cubic root of 12948040 is about 234.8197803415.

The spelling of 12948040 in words is "twelve million, nine hundred forty-eight thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 131 140 262 280 353 524 655 706 917 1048 1310 1412 1765 1834 2471 2620 2824 3530 3668 4585 4942 5240 7060 7336 9170 9884 12355 14120 18340 19768 24710 36680 46243 49420 92486 98840 184972 231215 323701 369944 462430 647402 924860 1294804 1618505 1849720 2589608 3237010 6474020 12948040