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130223256 = 2336318599
BaseRepresentation
bin1111100001100…
…00110010011000
3100002001000201120
413300300302120
5231314121011
620531045240
73140610432
oct760606230
9302030646
10130223256
1167564729
1237740820
1320c962a7
141341b652
15b674a06
hex7c30c98

130223256 has 32 divisors (see below), whose sum is σ = 326112000. Its totient is φ = 43333920.

The previous prime is 130223243. The next prime is 130223267. The reversal of 130223256 is 652322031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 10845 + ... + 19443.

It is an arithmetic number, because the mean of its divisors is an integer number (10191000).

Almost surely, 2130223256 is an apocalyptic number.

It is an amenable number.

130223256 is an abundant number, since it is smaller than the sum of its proper divisors (195888744).

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

130223256 is a wasteful number, since it uses less digits than its factorization.

130223256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9239 (or 9235 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 130223256 is about 11411.5404744495. The cubic root of 130223256 is about 506.8695282617.

Adding to 130223256 its reverse (652322031), we get a palindrome (782545287).

The spelling of 130223256 in words is "one hundred thirty million, two hundred twenty-three thousand, two hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 24 631 1262 1893 2524 3786 5048 7572 8599 15144 17198 25797 34396 51594 68792 103188 206376 5425969 10851938 16277907 21703876 32555814 43407752 65111628 130223256