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293130729 = 3232570081
BaseRepresentation
bin10001011110001…
…101000111101001
3202102120120202200
4101132031013221
51100020140404
645030450413
710156366353
oct2136150751
9672516680
10293130729
11140512501
1282203a09
1348964248
142ad060d3
151ab03839
hex1178d1e9

293130729 has 6 divisors (see below), whose sum is σ = 423411066. Its totient is φ = 195420480.

The previous prime is 293130707. The next prime is 293130731. The reversal of 293130729 is 927031392.

It can be written as a sum of positive squares in only one way, i.e., 214329600 + 78801129 = 14640^2 + 8877^2 .

It is not a de Polignac number, because 293130729 - 211 = 293128681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 293130693 and 293130702.

It is not an unprimeable number, because it can be changed into a prime (293130029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16285032 + ... + 16285049.

It is an arithmetic number, because the mean of its divisors is an integer number (70568511).

Almost surely, 2293130729 is an apocalyptic number.

It is an amenable number.

293130729 is a deficient number, since it is larger than the sum of its proper divisors (130280337).

293130729 is a wasteful number, since it uses less digits than its factorization.

293130729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32570087 (or 32570084 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 293130729 is about 17121.0609776380. The cubic root of 293130729 is about 664.2839855859.

The spelling of 293130729 in words is "two hundred ninety-three million, one hundred thirty thousand, seven hundred twenty-nine".

Divisors: 1 3 9 32570081 97710243 293130729