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12233505 = 352928123
BaseRepresentation
bin101110101010…
…101100100001
3212000112012210
4232222230201
511112433010
61114112333
7205661124
oct56525441
925015183
1012233505
1169a6239
12411b6a9
1326c437b
1418a63bb
151119b20
hexbaab21

12233505 has 16 divisors (see below), whose sum is σ = 20249280. Its totient is φ = 6299328.

The previous prime is 12233491. The next prime is 12233509. The reversal of 12233505 is 50533221.

12233505 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12233505 - 29 = 12232993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12233509) 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, 13627 + ... + 14496.

It is an arithmetic number, because the mean of its divisors is an integer number (1265580).

Almost surely, 212233505 is an apocalyptic number.

12233505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12233505 is a deficient number, since it is larger than the sum of its proper divisors (8015775).

12233505 is a wasteful number, since it uses less digits than its factorization.

12233505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28160.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 12233505 is about 3497.6427776433. The cubic root of 12233505 is about 230.4182999004.

Adding to 12233505 its reverse (50533221), we get a palindrome (62766726).

The spelling of 12233505 in words is "twelve million, two hundred thirty-three thousand, five hundred five".

Divisors: 1 3 5 15 29 87 145 435 28123 84369 140615 421845 815567 2446701 4077835 12233505