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298368531920 = 2453729606649
BaseRepresentation
bin1000101011110000010…
…01100111110111010000
31001112010211000212021102
410111320021213313100
514342024321010140
6345022453043532
730361564450544
oct4257011476720
91045124025242
10298368531920
111055a0292178
12499ab0265a8
132219cb28894
14106265b9a24
157b64345e15
hex4578267dd0

298368531920 has 20 divisors (see below), whose sum is σ = 693706836900. Its totient is φ = 119347412736.

The previous prime is 298368531883. The next prime is 298368531973. The reversal of 298368531920 is 29135863892.

It can be written as a sum of positive squares in 2 ways, for example, as 62176419904 + 236192112016 = 249352^2 + 485996^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1864803245 + ... + 1864803404.

It is an arithmetic number, because the mean of its divisors is an integer number (34685341845).

Almost surely, 2298368531920 is an apocalyptic number.

298368531920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

298368531920 is an abundant number, since it is smaller than the sum of its proper divisors (395338304980).

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

298368531920 is a wasteful number, since it uses less digits than its factorization.

298368531920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729606662 (or 3729606656 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 298368531920 in words is "two hundred ninety-eight billion, three hundred sixty-eight million, five hundred thirty-one thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 3729606649 7459213298 14918426596 18648033245 29836853192 37296066490 59673706384 74592132980 149184265960 298368531920