Search a number
-
+
30301087 = 149203363
BaseRepresentation
bin111001110010…
…1101110011111
32010000110021111
41303211232133
530224113322
63001242451
7515361235
oct163455637
963013244
1030301087
1116116723
12a193427
13637c04b
14404a955
1529d8177
hex1ce5b9f

30301087 has 4 divisors (see below), whose sum is σ = 30504600. Its totient is φ = 30097576.

The previous prime is 30301031. The next prime is 30301109. The reversal of 30301087 is 78010303.

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

It is a cyclic number.

It is not a de Polignac number, because 30301087 - 211 = 30299039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30307087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101533 + ... + 101830.

It is an arithmetic number, because the mean of its divisors is an integer number (7626150).

Almost surely, 230301087 is an apocalyptic number.

30301087 is a deficient number, since it is larger than the sum of its proper divisors (203513).

30301087 is a wasteful number, since it uses less digits than its factorization.

30301087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203512.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 30301087 is about 5504.6423135386. The cubic root of 30301087 is about 311.7592893265.

The spelling of 30301087 in words is "thirty million, three hundred one thousand, eighty-seven".

Divisors: 1 149 203363 30301087