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234352220 = 22553221087
BaseRepresentation
bin11011111011111…
…10111001011100
3121022222022210212
431331332321130
5434443232340
635130551552
75543650424
oct1575767134
9538868725
10234352220
11110316323
12665985b8
133972426b
14231a5484
1515892a65
hexdf7ee5c

234352220 has 24 divisors (see below), whose sum is σ = 501427584. Its totient is φ = 91971776.

The previous prime is 234352207. The next prime is 234352229. The reversal of 234352220 is 22253432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234352229) 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, 109484 + ... + 111603.

It is an arithmetic number, because the mean of its divisors is an integer number (20892816).

Almost surely, 2234352220 is an apocalyptic number.

234352220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234352220 is an abundant number, since it is smaller than the sum of its proper divisors (267075364).

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

234352220 is a wasteful number, since it uses less digits than its factorization.

234352220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221149 (or 221147 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 234352220 is about 15308.5668826314. The cubic root of 234352220 is about 616.5330427137.

The spelling of 234352220 in words is "two hundred thirty-four million, three hundred fifty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 221087 442174 884348 1105435 2210870 4421740 11717611 23435222 46870444 58588055 117176110 234352220