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30298027 = 191594633
BaseRepresentation
bin111001110010…
…0111110101011
32010000022002011
41303210332223
530224014102
63001220351
7515346304
oct163447653
963008064
1030298027
11161143a1
12a1916b7
13637a836
1440497ab
1529d72d7
hex1ce4fab

30298027 has 4 divisors (see below), whose sum is σ = 31892680. Its totient is φ = 28703376.

The previous prime is 30297979. The next prime is 30298031. The reversal of 30298027 is 72089203.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30298027 - 215 = 30265259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30298027.

It is not an unprimeable number, because it can be changed into a prime (30298427) 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, 797298 + ... + 797335.

It is an arithmetic number, because the mean of its divisors is an integer number (7973170).

Almost surely, 230298027 is an apocalyptic number.

30298027 is a deficient number, since it is larger than the sum of its proper divisors (1594653).

30298027 is a wasteful number, since it uses less digits than its factorization.

30298027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594652.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 30298027 is about 5504.3643593062. The cubic root of 30298027 is about 311.7487944825.

The spelling of 30298027 in words is "thirty million, two hundred ninety-eight thousand, twenty-seven".

Divisors: 1 19 1594633 30298027