Search a number
-
+
30647054 = 226715737
BaseRepresentation
bin111010011101…
…0001100001110
32010200000212002
41310322030032
530321201204
63012512302
7521332004
oct164721416
963600762
1030647054
1116332649
12a31b692
136470669
1440daa74
152a5591e
hex1d3a30e

30647054 has 8 divisors (see below), whose sum is σ = 45995808. Its totient is φ = 15315120.

The previous prime is 30647051. The next prime is 30647081. The reversal of 30647054 is 45074603.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30647051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2474 + ... + 8210.

It is an arithmetic number, because the mean of its divisors is an integer number (5749476).

Almost surely, 230647054 is an apocalyptic number.

30647054 is a deficient number, since it is larger than the sum of its proper divisors (15348754).

30647054 is a wasteful number, since it uses less digits than its factorization.

30647054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8410.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 30647054 is about 5535.9781430204. The cubic root of 30647054 is about 312.9413207817.

The spelling of 30647054 in words is "thirty million, six hundred forty-seven thousand, fifty-four".

Divisors: 1 2 2671 5342 5737 11474 15323527 30647054