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232123212 = 22332149289
BaseRepresentation
bin11011101010111…
…10101101001100
3121011210002012000
431311132231030
5433410420322
635011112300
75516005026
oct1565365514
9534702160
10232123212
1110a033672
12658a2690
1339123819
1422b85016
15155a23ac
hexdd5eb4c

232123212 has 24 divisors (see below), whose sum is σ = 601801200. Its totient is φ = 77374368.

The previous prime is 232123207. The next prime is 232123217. The reversal of 232123212 is 212321232.

232123212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (232123207) and next prime (232123217).

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

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (232123217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1074537 + ... + 1074752.

It is an arithmetic number, because the mean of its divisors is an integer number (25075050).

Almost surely, 2232123212 is an apocalyptic number.

It is an amenable number.

232123212 is an abundant number, since it is smaller than the sum of its proper divisors (369677988).

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

232123212 is a wasteful number, since it uses less digits than its factorization.

232123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149302 (or 2149294 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 232123212 is about 15235.5903069097. The cubic root of 232123212 is about 614.5721235587.

Adding to 232123212 its reverse (212321232), we get a palindrome (444444444).

The spelling of 232123212 in words is "two hundred thirty-two million, one hundred twenty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 2149289 4298578 6447867 8597156 12895734 19343601 25791468 38687202 58030803 77374404 116061606 232123212