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130223609 = 3719118427
BaseRepresentation
bin1111100001100…
…00110111111001
3100002001001012122
413300300313321
5231314123414
620531051025
73140611445
oct760606771
9302031178
10130223609
1167564a1a
1237740a75
1320c964b9
141341b825
15b674b8e
hex7c30df9

130223609 has 8 divisors (see below), whose sum is σ = 134450688. Its totient is φ = 126033840.

The previous prime is 130223603. The next prime is 130223617. The reversal of 130223609 is 906322031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130223609 - 216 = 130158073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130223603) 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, 2147 + ... + 16280.

It is an arithmetic number, because the mean of its divisors is an integer number (16806336).

Almost surely, 2130223609 is an apocalyptic number.

It is an amenable number.

130223609 is a deficient number, since it is larger than the sum of its proper divisors (4227079).

130223609 is a wasteful number, since it uses less digits than its factorization.

130223609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18655.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 130223609 is about 11411.5559412378. Note that the first 3 decimals coincide. The cubic root of 130223609 is about 506.8699862567.

The spelling of 130223609 in words is "one hundred thirty million, two hundred twenty-three thousand, six hundred nine".

Divisors: 1 37 191 7067 18427 681799 3519557 130223609