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234304421 = 13171060201
BaseRepresentation
bin11011111011100…
…11001110100101
3121022212220020112
431331303032211
5434440220141
635125542405
75543361161
oct1575631645
9538786215
10234304421
1111029341a
1266574a05
1339708590
1423191ca1
15158837eb
hexdf733a5

234304421 has 8 divisors (see below), whose sum is σ = 267170904. Its totient is φ = 203558400.

The previous prime is 234304393. The next prime is 234304423. The reversal of 234304421 is 124403432.

It can be written as a sum of positive squares in 4 ways, for example, as 57547396 + 176757025 = 7586^2 + 13295^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-234304421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234304423) 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, 529880 + ... + 530321.

It is an arithmetic number, because the mean of its divisors is an integer number (33396363).

Almost surely, 2234304421 is an apocalyptic number.

It is an amenable number.

234304421 is a deficient number, since it is larger than the sum of its proper divisors (32866483).

234304421 is a wasteful number, since it uses less digits than its factorization.

234304421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060231.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 234304421 is about 15307.0056183435. The cubic root of 234304421 is about 616.4911233801.

Adding to 234304421 its reverse (124403432), we get a palindrome (358707853).

The spelling of 234304421 in words is "two hundred thirty-four million, three hundred four thousand, four hundred twenty-one".

Divisors: 1 13 17 221 1060201 13782613 18023417 234304421