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299918020 = 22514995901
BaseRepresentation
bin10001111000000…
…110001011000100
3202220100102011211
4101320012023010
51103234334040
645432141204
710301155363
oct2170061304
9686312154
10299918020
11144328936
1284537804
134a19c6ac
142bb917da
151b4e48ea
hex11e062c4

299918020 has 12 divisors (see below), whose sum is σ = 629827884. Its totient is φ = 119967200.

The previous prime is 299917997. The next prime is 299918027. The reversal of 299918020 is 20819992.

299918020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 170459136 + 129458884 = 13056^2 + 11378^2 .

It is not an unprimeable number, because it can be changed into a prime (299918027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7497931 + ... + 7497970.

It is an arithmetic number, because the mean of its divisors is an integer number (52485657).

Almost surely, 2299918020 is an apocalyptic number.

299918020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

299918020 is an abundant number, since it is smaller than the sum of its proper divisors (329909864).

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

299918020 is a wasteful number, since it uses less digits than its factorization.

299918020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14995910 (or 14995908 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 299918020 is about 17318.1413552379. The cubic root of 299918020 is about 669.3719666233.

The spelling of 299918020 in words is "two hundred ninety-nine million, nine hundred eighteen thousand, twenty".

Divisors: 1 2 4 5 10 20 14995901 29991802 59983604 74979505 149959010 299918020