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299082440 = 23527726993
BaseRepresentation
bin10001110100111…
…010001011001000
3202211202221222102
4101310322023020
51103031114230
645402212532
710261105316
oct2164721310
9684687872
10299082440
11143908078
12841b4148
1349c69277
142ba150b6
151b3cc045
hex11d3a2c8

299082440 has 32 divisors (see below), whose sum is σ = 675389880. Its totient is φ = 119196672.

The previous prime is 299082437. The next prime is 299082457. The reversal of 299082440 is 44280992.

It can be written as a sum of positive squares in 4 ways, for example, as 107702884 + 191379556 = 10378^2 + 13834^2 .

It is a junction number, because it is equal to n+sod(n) for n = 299082394 and 299082403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2417 + ... + 24576.

Almost surely, 2299082440 is an apocalyptic number.

299082440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

299082440 is an abundant number, since it is smaller than the sum of its proper divisors (376307440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

299082440 is a wasteful number, since it uses less digits than its factorization.

299082440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27281 (or 27277 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 299082440 is about 17294.0001156470. Note that the first 3 decimals coincide. The cubic root of 299082440 is about 668.7497587561.

The spelling of 299082440 in words is "two hundred ninety-nine million, eighty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 277 554 1108 1385 2216 2770 5540 11080 26993 53986 107972 134965 215944 269930 539860 1079720 7477061 14954122 29908244 37385305 59816488 74770610 149541220 299082440