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232506220 = 22511625311
BaseRepresentation
bin11011101101111…
…00001101101100
3121012111112120111
431312330031230
5434010144340
635023225404
75522161462
oct1566741554
9535445514
10232506220
1110a275401
1265a48264
1339228c5b
1422c44832
151562aaea
hexddbc36c

232506220 has 12 divisors (see below), whose sum is σ = 488263104. Its totient is φ = 93002480.

The previous prime is 232506199. The next prime is 232506221. The reversal of 232506220 is 22605232.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 232506191 and 232506200.

It is not an unprimeable number, because it can be changed into a prime (232506221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5812636 + ... + 5812675.

It is an arithmetic number, because the mean of its divisors is an integer number (40688592).

Almost surely, 2232506220 is an apocalyptic number.

232506220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232506220 is an abundant number, since it is smaller than the sum of its proper divisors (255756884).

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

232506220 is a wasteful number, since it uses less digits than its factorization.

232506220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11625320 (or 11625318 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 232506220 is about 15248.1546424477. The cubic root of 232506220 is about 614.9099566324.

The spelling of 232506220 in words is "two hundred thirty-two million, five hundred six thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 11625311 23250622 46501244 58126555 116253110 232506220