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293369381 = 2291281089
BaseRepresentation
bin10001011111000…
…111011000100101
3202110000201010122
4101133013120211
51100100310011
645035531325
710161412214
oct2137073045
9673021118
10293369381
11140665838
12822b9b45
1348a18a66
142ad6907b
151ab4e3db
hex117c7625

293369381 has 4 divisors (see below), whose sum is σ = 294650700. Its totient is φ = 292088064.

The previous prime is 293369371. The next prime is 293369383. The reversal of 293369381 is 183963392.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 190164100 + 103205281 = 13790^2 + 10159^2 .

It is a cyclic number.

It is not a de Polignac number, because 293369381 - 26 = 293369317 is a prime.

It is a super-2 number, since 2×2933693812 = 172131187416646322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (293369383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640316 + ... + 640773.

It is an arithmetic number, because the mean of its divisors is an integer number (73662675).

Almost surely, 2293369381 is an apocalyptic number.

It is an amenable number.

293369381 is a deficient number, since it is larger than the sum of its proper divisors (1281319).

293369381 is a wasteful number, since it uses less digits than its factorization.

293369381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281318.

The product of its digits is 209952, while the sum is 44.

The square root of 293369381 is about 17128.0291043657. The cubic root of 293369381 is about 664.4642119974.

The spelling of 293369381 in words is "two hundred ninety-three million, three hundred sixty-nine thousand, three hundred eighty-one".

Divisors: 1 229 1281089 293369381