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12568040 = 235437307
BaseRepresentation
bin101111111100…
…010111101000
3212122112002222
4233330113220
511204134130
61125213212
7211553342
oct57742750
925575088
1012568040
117104611
124261208
1327b0714
141952292
151183ce5
hexbfc5e8

12568040 has 32 divisors (see below), whose sum is σ = 28939680. Its totient is φ = 4909632.

The previous prime is 12568037. The next prime is 12568043. The reversal of 12568040 is 4086521.

Added to its reverse (4086521) it gives a square (16654561 = 40812).

It is an interprime number because it is at equal distance from previous prime (12568037) and next prime (12568043).

It is not an unprimeable number, because it can be changed into a prime (12568043) 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, 1934 + ... + 5373.

It is an arithmetic number, because the mean of its divisors is an integer number (904365).

Almost surely, 212568040 is an apocalyptic number.

12568040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12568040 is an abundant number, since it is smaller than the sum of its proper divisors (16371640).

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

12568040 is a wasteful number, since it uses less digits than its factorization.

12568040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7361 (or 7357 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 12568040 is about 3545.1431564889. The cubic root of 12568040 is about 232.4997649051.

Adding to 12568040 its reverse (4086521), we get a square (16654561 = 40812).

The spelling of 12568040 in words is "twelve million, five hundred sixty-eight thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1720 7307 14614 29228 36535 58456 73070 146140 292280 314201 628402 1256804 1571005 2513608 3142010 6284020 12568040