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212330432 = 263317663
BaseRepresentation
bin11001010011111…
…10011111000000
3112210112111121002
430221332133000
5413324033212
633022551132
75155531106
oct1451763700
9483474532
10212330432
11a9944aa6
125b1384a8
1334cb3812
14202b1c76
1513992ac2
hexca7e7c0

212330432 has 14 divisors (see below), whose sum is σ = 421343328. Its totient is φ = 106165184.

The previous prime is 212330429. The next prime is 212330441. The reversal of 212330432 is 234033212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1658768 + ... + 1658895.

It is an arithmetic number, because the mean of its divisors is an integer number (30095952).

Almost surely, 2212330432 is an apocalyptic number.

It is an amenable number.

212330432 is a deficient number, since it is larger than the sum of its proper divisors (209012896).

212330432 is an equidigital number, since it uses as much as digits as its factorization.

212330432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317675 (or 3317665 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 212330432 is about 14571.5624419621. The cubic root of 212330432 is about 596.5828270133.

Adding to 212330432 its reverse (234033212), we get a palindrome (446363644).

The spelling of 212330432 in words is "two hundred twelve million, three hundred thirty thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 32 64 3317663 6635326 13270652 26541304 53082608 106165216 212330432