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293343393 = 3753263561
BaseRepresentation
bin10001011111000…
…001000010100001
3202102222101111010
4101133001002201
51100043442033
645035211133
710161243360
oct2137010241
9672871433
10293343393
11140648262
12822a6aa9
1348a09c95
142ad5d7d7
151ab46863
hex117c10a1

293343393 has 16 divisors (see below), whose sum is σ = 455435136. Its totient is φ = 164461440.

The previous prime is 293343371. The next prime is 293343433. The reversal of 293343393 is 393343392.

It is not a de Polignac number, because 293343393 - 25 = 293343361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (293341393) 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 15 ways as a sum of consecutive naturals, for example, 130668 + ... + 132893.

It is an arithmetic number, because the mean of its divisors is an integer number (28464696).

Almost surely, 2293343393 is an apocalyptic number.

It is an amenable number.

293343393 is a deficient number, since it is larger than the sum of its proper divisors (162091743).

293343393 is a wasteful number, since it uses less digits than its factorization.

293343393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263624.

The product of its digits is 157464, while the sum is 39.

The square root of 293343393 is about 17127.2704480311. The cubic root of 293343393 is about 664.4445909928. Note that the first 3 decimals are identical.

Subtracting 293343393 from its reverse (393343392), we obtain a palindrome (99999999).

The spelling of 293343393 in words is "two hundred ninety-three million, three hundred forty-three thousand, three hundred ninety-three".

Divisors: 1 3 7 21 53 159 371 1113 263561 790683 1844927 5534781 13968733 41906199 97781131 293343393