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299660864 = 268952609
BaseRepresentation
bin10001110111000…
…111011001000000
3202212212100102112
4101313013121000
51103203121424
645422434452
710266034556
oct2167073100
9685770375
10299660864
11144172708
1284432a28
134a10c629
142bb25bd6
151b49360e
hex11dc7640

299660864 has 28 divisors (see below), whose sum is σ = 601332300. Its totient is φ = 148144128.

The previous prime is 299660863. The next prime is 299660869. The reversal of 299660864 is 468066992.

It can be written as a sum of positive squares in 2 ways, for example, as 184742464 + 114918400 = 13592^2 + 10720^2 .

It is not an unprimeable number, because it can be changed into a prime (299660863) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20609 + ... + 32000.

Almost surely, 2299660864 is an apocalyptic number.

It is an amenable number.

299660864 is an abundant number, since it is smaller than the sum of its proper divisors (301671436).

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

299660864 is an equidigital number, since it uses as much as digits as its factorization.

299660864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52710 (or 52700 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 299660864 is about 17310.7152942910. The cubic root of 299660864 is about 669.1806007319.

The spelling of 299660864 in words is "two hundred ninety-nine million, six hundred sixty thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 32 64 89 178 356 712 1424 2848 5696 52609 105218 210436 420872 841744 1683488 3366976 4682201 9364402 18728804 37457608 74915216 149830432 299660864