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234314221 = 418216961
BaseRepresentation
bin11011111011101…
…01100111101101
3121022220101200111
431331311213231
5434441023341
635130100021
75543431561
oct1575654755
9538811614
10234314221
1111029a819
126657a611
133970cb8b
14231956a1
1515886681
hexdf759ed

234314221 has 8 divisors (see below), whose sum is σ = 240356088. Its totient is φ = 228288000.

The previous prime is 234314189. The next prime is 234314231. The reversal of 234314221 is 122413432.

It can be written as a sum of positive squares in 4 ways, for example, as 4791721 + 229522500 = 2189^2 + 15150^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 234314221 - 25 = 234314189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234314192 and 234314201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234314231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30181 + ... + 37141.

It is an arithmetic number, because the mean of its divisors is an integer number (30044511).

Almost surely, 2234314221 is an apocalyptic number.

It is an amenable number.

234314221 is a deficient number, since it is larger than the sum of its proper divisors (6041867).

234314221 is an equidigital number, since it uses as much as digits as its factorization.

234314221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7823.

The product of its digits is 1152, while the sum is 22.

The square root of 234314221 is about 15307.3257298589. The cubic root of 234314221 is about 616.4997183648.

Adding to 234314221 its reverse (122413432), we get a palindrome (356727653).

The spelling of 234314221 in words is "two hundred thirty-four million, three hundred fourteen thousand, two hundred twenty-one".

Divisors: 1 41 821 6961 33661 285401 5714981 234314221