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223808132 = 221371492741
BaseRepresentation
bin11010101011100…
…00101010000100
3120121010122001002
431111300222010
5424243330012
634112552432
75355223562
oct1525605204
9517118032
10223808132
111053743a9
1262b52718
13374a1b62
1421a1ca32
15149ad7c2
hexd570a84

223808132 has 24 divisors (see below), whose sum is σ = 397315800. Its totient is φ = 110301440.

The previous prime is 223808131. The next prime is 223808141. The reversal of 223808132 is 231808322.

It can be written as a sum of positive squares in 4 ways, for example, as 2869636 + 220938496 = 1694^2 + 14864^2 .

It is a junction number, because it is equal to n+sod(n) for n = 223808095 and 223808104.

It is not an unprimeable number, because it can be changed into a prime (223808131) 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, 80282 + ... + 83022.

It is an arithmetic number, because the mean of its divisors is an integer number (16554825).

Almost surely, 2223808132 is an apocalyptic number.

It is an amenable number.

223808132 is a deficient number, since it is larger than the sum of its proper divisors (173507668).

223808132 is a wasteful number, since it uses less digits than its factorization.

223808132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031 (or 3029 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 223808132 is about 14960.2183139151. The cubic root of 223808132 is about 607.1443447675.

The spelling of 223808132 in words is "two hundred twenty-three million, eight hundred eight thousand, one hundred thirty-two".

Divisors: 1 2 4 137 149 274 298 548 596 2741 5482 10964 20413 40826 81652 375517 408409 751034 816818 1502068 1633636 55952033 111904066 223808132