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298420093 = 391976147
BaseRepresentation
bin10001110010011…
…000011101111101
3202210112022102001
4101302120131331
51102343420333
645340102301
710252346266
oct2162303575
9683468361
10298420093
111434a5484
1283b34991
1349a9694a
142b8c196d
151b2eab7d
hex11c9877d

298420093 has 4 divisors (see below), whose sum is σ = 298500160. Its totient is φ = 298340028.

The previous prime is 298420081. The next prime is 298420141. The reversal of 298420093 is 390024892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 298420093 - 221 = 296322941 is a prime.

It is a super-2 number, since 2×2984200932 = 178109103812257298, 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 (298420393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34155 + ... + 41992.

It is an arithmetic number, because the mean of its divisors is an integer number (74625040).

Almost surely, 2298420093 is an apocalyptic number.

It is an amenable number.

298420093 is a deficient number, since it is larger than the sum of its proper divisors (80067).

298420093 is an equidigital number, since it uses as much as digits as its factorization.

298420093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80066.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 298420093 is about 17274.8398834837. The cubic root of 298420093 is about 668.2557235325.

The spelling of 298420093 in words is "two hundred ninety-eight million, four hundred twenty thousand, ninety-three".

Divisors: 1 3919 76147 298420093