Search a number
-
+
30904548 = 22323111973
BaseRepresentation
bin111010111100…
…1000011100100
32011011010001220
41311321003210
530402421143
63022220340
7523453503
oct165710344
964133056
1030904548
1116499054
12a4246b0
13653091c
14416683a
152aa6d83
hex1d790e4

30904548 has 24 divisors (see below), whose sum is σ = 75246528. Its totient is φ = 9853536.

The previous prime is 30904543. The next prime is 30904553. The reversal of 30904548 is 84540903.

It is an interprime number because it is at equal distance from previous prime (30904543) and next prime (30904553).

It is not an unprimeable number, because it can be changed into a prime (30904543) 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 7 ways as a sum of consecutive naturals, for example, 55711 + ... + 56262.

It is an arithmetic number, because the mean of its divisors is an integer number (3135272).

Almost surely, 230904548 is an apocalyptic number.

It is an amenable number.

30904548 is an abundant number, since it is smaller than the sum of its proper divisors (44341980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30904548 is a wasteful number, since it uses less digits than its factorization.

30904548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112003 (or 112001 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 30904548 is about 5559.1859116241. The cubic root of 30904548 is about 313.8153132495.

The spelling of 30904548 in words is "thirty million, nine hundred four thousand, five hundred forty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 111973 223946 335919 447892 671838 1343676 2575379 5150758 7726137 10301516 15452274 30904548