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203220130220 = 22543236302477
BaseRepresentation
bin1011110101000011011…
…1010001100110101100
3201102112202112020201122
42331100313101212230
511312143323131340
6233205200400112
720452661414522
oct2752067214654
9642482466648
10203220130220
1179204513748
1233476016038
13162184b8483
149b9ba2a312
155445eebdb5
hex2f50dd19ac

203220130220 has 24 divisors (see below), whose sum is σ = 436686979344. Its totient is φ = 79397631936.

The previous prime is 203220130207. The next prime is 203220130241. The reversal of 203220130220 is 22031022302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118150379 + ... + 118152098.

It is an arithmetic number, because the mean of its divisors is an integer number (18195290806).

Almost surely, 2203220130220 is an apocalyptic number.

203220130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203220130220 is an abundant number, since it is smaller than the sum of its proper divisors (233466849124).

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

203220130220 is a wasteful number, since it uses less digits than its factorization.

203220130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236302529 (or 236302527 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 203220130220 its reverse (22031022302), we get a palindrome (225251152522).

The spelling of 203220130220 in words is "two hundred three billion, two hundred twenty million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 236302477 472604954 945209908 1181512385 2363024770 4726049540 10161006511 20322013022 40644026044 50805032555 101610065110 203220130220