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130043243 = 1179263569
BaseRepresentation
bin1111100000001…
…00110101101011
3100001200212210102
413300010311223
5231242340433
620523140015
73136230551
oct760046553
9301625712
10130043243
1167451460
123767460b
1320c32385
14133b1bd1
15b63b4e8
hex7c04d6b

130043243 has 16 divisors (see below), whose sum is σ = 144460800. Its totient is φ = 116076480.

The previous prime is 130043237. The next prime is 130043297. The reversal of 130043243 is 342340031.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130043243 is a prime.

It is a super-2 number, since 2×1300432432 = 33822490099914098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130043143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228263 + ... + 228831.

It is an arithmetic number, because the mean of its divisors is an integer number (9028800).

Almost surely, 2130043243 is an apocalyptic number.

130043243 is a deficient number, since it is larger than the sum of its proper divisors (14417557).

130043243 is a wasteful number, since it uses less digits than its factorization.

130043243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 130043243 is about 11403.6504243159. The cubic root of 130043243 is about 506.6358649808.

Adding to 130043243 its reverse (342340031), we get a palindrome (472383274).

The spelling of 130043243 in words is "one hundred thirty million, forty-three thousand, two hundred forty-three".

Divisors: 1 11 79 263 569 869 2893 6259 20777 44951 149647 228547 494461 1646117 11822113 130043243