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299668450 = 25216573617
BaseRepresentation
bin10001110111001…
…001001111100010
3202212212201211111
4101313021033202
51103203342300
645422533534
710266065644
oct2167111742
9685781744
10299668450
11144178384
12844372aa
134a112c13
142bb28894
151b4959ba
hex11dc93e2

299668450 has 24 divisors (see below), whose sum is σ = 557873892. Its totient is φ = 119761920.

The previous prime is 299668393. The next prime is 299668451. The reversal of 299668450 is 54866992.

It can be written as a sum of positive squares in 6 ways, for example, as 11042329 + 288626121 = 3323^2 + 16989^2 .

It is a junction number, because it is equal to n+sod(n) for n = 299668394 and 299668403.

It is not an unprimeable number, because it can be changed into a prime (299668451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81042 + ... + 84658.

Almost surely, 2299668450 is an apocalyptic number.

299668450 is a deficient number, since it is larger than the sum of its proper divisors (258205442).

299668450 is a wasteful number, since it uses less digits than its factorization.

299668450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5286 (or 5281 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 299668450 is about 17310.9344057448. The cubic root of 299668450 is about 669.1862475167.

It can be divided in two parts, 29966 and 8450, that added together give a 4-th power (38416 = 144).

The spelling of 299668450 in words is "two hundred ninety-nine million, six hundred sixty-eight thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 1657 3314 3617 7234 8285 16570 18085 36170 41425 82850 90425 180850 5993369 11986738 29966845 59933690 149834225 299668450