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130203223 = 151862273
BaseRepresentation
bin1111100001010…
…11111001010111
3100002000000020121
413300223321113
5231313000343
620530412411
73140465143
oct760537127
9302000217
10130203223
1167550677
1237731107
1320c8a137
1413414223
15b66daed
hex7c2be57

130203223 has 4 divisors (see below), whose sum is σ = 131065648. Its totient is φ = 129340800.

The previous prime is 130203209. The next prime is 130203239. The reversal of 130203223 is 322302031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130203223 - 213 = 130195031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130203197 and 130203206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130503223) 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, 430986 + ... + 431287.

It is an arithmetic number, because the mean of its divisors is an integer number (32766412).

Almost surely, 2130203223 is an apocalyptic number.

130203223 is a deficient number, since it is larger than the sum of its proper divisors (862425).

130203223 is an equidigital number, since it uses as much as digits as its factorization.

130203223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862424.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 130203223 is about 11410.6626889064. The cubic root of 130203223 is about 506.8435353674.

Adding to 130203223 its reverse (322302031), we get a palindrome (452505254).

The spelling of 130203223 in words is "one hundred thirty million, two hundred three thousand, two hundred twenty-three".

Divisors: 1 151 862273 130203223