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298028031 = 3714191811
BaseRepresentation
bin10001110000111…
…000101111111111
3202202210101121020
4101300320233333
51102243344111
645323435223
710246124250
oct2160705777
9682711536
10298028031
11143257964
1283985b13
134998a362
142b81cb27
151b26e906
hex11c38bff

298028031 has 8 divisors (see below), whose sum is σ = 454137984. Its totient is φ = 170301720.

The previous prime is 298028023. The next prime is 298028039. The reversal of 298028031 is 130820892.

It is an interprime number because it is at equal distance from previous prime (298028023) and next prime (298028039).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 298028031 - 23 = 298028023 is a prime.

It is a super-2 number, since 2×2980280312 = 177641414523473922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 298027983 and 298028001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298028039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7095885 + ... + 7095926.

It is an arithmetic number, because the mean of its divisors is an integer number (56767248).

Almost surely, 2298028031 is an apocalyptic number.

298028031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

298028031 is a deficient number, since it is larger than the sum of its proper divisors (156109953).

298028031 is a wasteful number, since it uses less digits than its factorization.

298028031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14191821.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 298028031 is about 17263.4883786563. The cubic root of 298028031 is about 667.9629455524.

The spelling of 298028031 in words is "two hundred ninety-eight million, twenty-eight thousand, thirty-one".

Divisors: 1 3 7 21 14191811 42575433 99342677 298028031