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299944231 = 683439157
BaseRepresentation
bin10001111000001…
…100100100100111
3202220101202010121
4101320030210213
51103241203411
645432502411
710301324656
oct2170144447
9686352117
10299944231
111443465a4
128454aa07
134a1ab5c2
142bb9b19d
151b4ec571
hex11e0c927

299944231 has 4 divisors (see below), whose sum is σ = 300384072. Its totient is φ = 299504392.

The previous prime is 299944223. The next prime is 299944291. The reversal of 299944231 is 132449992.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 299944231 - 23 = 299944223 is a prime.

It is a super-2 number, since 2×2999442312 = 179933083420362722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299944291) 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, 218896 + ... + 220261.

It is an arithmetic number, because the mean of its divisors is an integer number (75096018).

Almost surely, 2299944231 is an apocalyptic number.

299944231 is a deficient number, since it is larger than the sum of its proper divisors (439841).

299944231 is an equidigital number, since it uses as much as digits as its factorization.

299944231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439840.

The product of its digits is 139968, while the sum is 43.

The square root of 299944231 is about 17318.8980885044. The cubic root of 299944231 is about 669.3914657268.

It can be divided in two parts, 29994 and 4231, that added together give a square (34225 = 1852).

The spelling of 299944231 in words is "two hundred ninety-nine million, nine hundred forty-four thousand, two hundred thirty-one".

Divisors: 1 683 439157 299944231