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298910912420 = 22514945545621
BaseRepresentation
bin1000101100110000111…
…10101000111110100100
31001120112121121122110002
410112120132220332210
514344132143144140
6345152350120432
730411201556031
oct4263036507644
91046477548402
10298910912420
1110584946571a
1249b207b0118
13222582cbba3
1410678644388
157b96c81415
hex45987a8fa4

298910912420 has 12 divisors (see below), whose sum is σ = 627712916124. Its totient is φ = 119564364960.

The previous prime is 298910912413. The next prime is 298910912423. The reversal of 298910912420 is 24219019892.

It can be written as a sum of positive squares in 2 ways, for example, as 43328087716 + 255582824704 = 208154^2 + 505552^2 .

It is not an unprimeable number, because it can be changed into a prime (298910912423) by changing a digit.

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, 7472772791 + ... + 7472772830.

It is an arithmetic number, because the mean of its divisors is an integer number (52309409677).

Almost surely, 2298910912420 is an apocalyptic number.

298910912420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

298910912420 is an abundant number, since it is smaller than the sum of its proper divisors (328802003704).

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

298910912420 is a wasteful number, since it uses less digits than its factorization.

298910912420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14945545630 (or 14945545628 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The spelling of 298910912420 in words is "two hundred ninety-eight billion, nine hundred ten million, nine hundred twelve thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 14945545621 29891091242 59782182484 74727728105 149455456210 298910912420