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12230532 = 22321811877
BaseRepresentation
bin101110101001…
…111110000100
3212000101010200
4232221332010
511112334112
61114050500
7205646346
oct56517604
925011120
1012230532
1169a3a86
124119a30
1326c2c02
1418a5296
151118cdc
hexba9f84

12230532 has 36 divisors (see below), whose sum is σ = 31103436. Its totient is φ = 4052160.

The previous prime is 12230527. The next prime is 12230539. The reversal of 12230532 is 23503221.

It can be written as a sum of positive squares in 2 ways, for example, as 2903616 + 9326916 = 1704^2 + 3054^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12230539) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5578 + ... + 7454.

Almost surely, 212230532 is an apocalyptic number.

12230532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12230532 is an abundant number, since it is smaller than the sum of its proper divisors (18872904).

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

12230532 is a wasteful number, since it uses less digits than its factorization.

12230532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068 (or 2063 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 12230532 is about 3497.2177512989. The cubic root of 12230532 is about 230.3996328843.

Adding to 12230532 its reverse (23503221), we get a palindrome (35733753).

The spelling of 12230532 in words is "twelve million, two hundred thirty thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 181 362 543 724 1086 1629 1877 2172 3258 3754 5631 6516 7508 11262 16893 22524 33786 67572 339737 679474 1019211 1358948 2038422 3057633 4076844 6115266 12230532