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212214304 = 256631697
BaseRepresentation
bin11001010011000…
…10001000100000
3112210022121022001
430221202020200
5413311324204
633020253344
75154535411
oct1451421040
9483277261
10212214304
11a9875825
125b0a1254
1334c729c3
1420281808
151396d4a4
hexca62220

212214304 has 12 divisors (see below), whose sum is σ = 417796974. Its totient is φ = 106107136.

The previous prime is 212214269. The next prime is 212214311. The reversal of 212214304 is 403412212.

It can be written as a sum of positive squares in only one way, i.e., 147379600 + 64834704 = 12140^2 + 8052^2 .

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3315817 + ... + 3315880.

Almost surely, 2212214304 is an apocalyptic number.

It is an amenable number.

212214304 is a deficient number, since it is larger than the sum of its proper divisors (205582670).

212214304 is an equidigital number, since it uses as much as digits as its factorization.

212214304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6631707 (or 6631699 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 212214304 is about 14567.5771492723. The cubic root of 212214304 is about 596.4740459279.

Adding to 212214304 its reverse (403412212), we get a palindrome (615626516).

The spelling of 212214304 in words is "two hundred twelve million, two hundred fourteen thousand, three hundred four".

Divisors: 1 2 4 8 16 32 6631697 13263394 26526788 53053576 106107152 212214304