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130223233 = 722657617
BaseRepresentation
bin1111100001100…
…00110010000001
3100002001000200201
413300300302001
5231314120413
620531045201
73140610400
oct760606201
9302030621
10130223233
1167564708
1237740801
1320c9628a
141341b637
15b6749dd
hex7c30c81

130223233 has 6 divisors (see below), whose sum is σ = 151484226. Its totient is φ = 111619872.

The previous prime is 130223231. The next prime is 130223243. The reversal of 130223233 is 332322031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 67765824 + 62457409 = 8232^2 + 7903^2 .

It is not a de Polignac number, because 130223233 - 21 = 130223231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130223233.

It is not an unprimeable number, because it can be changed into a prime (130223231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1328760 + ... + 1328857.

It is an arithmetic number, because the mean of its divisors is an integer number (25247371).

Almost surely, 2130223233 is an apocalyptic number.

It is an amenable number.

130223233 is a deficient number, since it is larger than the sum of its proper divisors (21260993).

130223233 is an equidigital number, since it uses as much as digits as its factorization.

130223233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657631 (or 2657624 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 130223233 is about 11411.5394666977. The cubic root of 130223233 is about 506.8694984206.

Adding to 130223233 its reverse (332322031), we get a palindrome (462545264).

The spelling of 130223233 in words is "one hundred thirty million, two hundred twenty-three thousand, two hundred thirty-three".

Divisors: 1 7 49 2657617 18603319 130223233