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299802143 = 4722972777
BaseRepresentation
bin10001110111101…
…001111000011111
3202220010112020002
4101313221320133
51103222132033
645425444515
710300163504
oct2167517037
9686115202
10299802143
11144259873
12844a073b
134a15ba24
142bb614ab
151b4c03e8
hex11de9e1f

299802143 has 8 divisors (see below), whose sum is σ = 306424512. Its totient is φ = 293190016.

The previous prime is 299802133. The next prime is 299802163. The reversal of 299802143 is 341208992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 299802143 - 210 = 299801119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 299802097 and 299802106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299802103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106571 + ... + 109347.

It is an arithmetic number, because the mean of its divisors is an integer number (38303064).

Almost surely, 2299802143 is an apocalyptic number.

299802143 is a deficient number, since it is larger than the sum of its proper divisors (6622369).

299802143 is a wasteful number, since it uses less digits than its factorization.

299802143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 299802143 is about 17314.7954940276. The cubic root of 299802143 is about 669.2857488330.

It can be divided in two parts, 29980 and 2143, that added together give a palindrome (32123).

The spelling of 299802143 in words is "two hundred ninety-nine million, eight hundred two thousand, one hundred forty-three".

Divisors: 1 47 2297 2777 107959 130519 6378769 299802143