Search a number
-
+
12822380 = 225677947
BaseRepresentation
bin110000111010…
…011101101100
3220010102222222
4300322131230
511240304010
61134454512
7213663014
oct60723554
926112888
1012822380
11726870a
124364438
13286c40c
1419bac44
1511d4355
hexc3a76c

12822380 has 24 divisors (see below), whose sum is σ = 26995248. Its totient is φ = 5115968.

The previous prime is 12822373. The next prime is 12822413. The reversal of 12822380 is 8322821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13067 + ... + 14013.

It is an arithmetic number, because the mean of its divisors is an integer number (1124802).

Almost surely, 212822380 is an apocalyptic number.

12822380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12822380 is an abundant number, since it is smaller than the sum of its proper divisors (14172868).

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

12822380 is a wasteful number, since it uses less digits than its factorization.

12822380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 12822380 is about 3580.8350981300. The cubic root of 12822380 is about 234.0576720050.

The spelling of 12822380 in words is "twelve million, eight hundred twenty-two thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 677 947 1354 1894 2708 3385 3788 4735 6770 9470 13540 18940 641119 1282238 2564476 3205595 6411190 12822380