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299899071 = 3343972663
BaseRepresentation
bin10001111000000…
…001100010111111
3202220022110012000
4101320001202333
51103233232241
645431513343
710301046213
oct2170014277
9686273160
10299899071
1114431567a
1284528853
134a193b94
142bb88943
151b4ddeb6
hex11e018bf

299899071 has 32 divisors (see below), whose sum is σ = 459486720. Its totient is φ = 193197312.

The previous prime is 299899043. The next prime is 299899073. The reversal of 299899071 is 170998992.

It is not a de Polignac number, because 299899071 - 210 = 299898047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 299898999 and 299899017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299899073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111286 + ... + 113948.

It is an arithmetic number, because the mean of its divisors is an integer number (14358960).

Almost surely, 2299899071 is an apocalyptic number.

299899071 is a deficient number, since it is larger than the sum of its proper divisors (159587649).

299899071 is a wasteful number, since it uses less digits than its factorization.

299899071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812 (or 2806 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 54.

The square root of 299899071 is about 17317.5942613286. The cubic root of 299899071 is about 669.3578692193.

It can be divided in two parts, 29989 and 9071, that added together give a triangular number (39060 = T279).

The spelling of 299899071 in words is "two hundred ninety-nine million, eight hundred ninety-nine thousand, seventy-one".

Divisors: 1 3 9 27 43 97 129 291 387 873 1161 2619 2663 4171 7989 12513 23967 37539 71901 112617 114509 258311 343527 774933 1030581 2324799 3091743 6974397 11107373 33322119 99966357 299899071