Search a number
-
+
30354288 = 243632381
BaseRepresentation
bin111001111001…
…0101101110000
32010010011020220
41303302231300
530232314123
63002333040
7516002316
oct163625560
963104226
1030354288
1116152698
12a1ba180
13639a323
1440620b6
1529e8ce3
hex1cf2b70

30354288 has 20 divisors (see below), whose sum is σ = 78415368. Its totient is φ = 10118080.

The previous prime is 30354287. The next prime is 30354323. The reversal of 30354288 is 88245303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30354281) 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, 316143 + ... + 316238.

Almost surely, 230354288 is an apocalyptic number.

It is an amenable number.

30354288 is an abundant number, since it is smaller than the sum of its proper divisors (48061080).

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

30354288 is a wasteful number, since it uses less digits than its factorization.

30354288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632392 (or 632386 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 30354288 is about 5509.4725700379. The cubic root of 30354288 is about 311.9416393142.

The spelling of 30354288 in words is "thirty million, three hundred fifty-four thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 632381 1264762 1897143 2529524 3794286 5059048 7588572 10118096 15177144 30354288