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30034288 = 2419313187
BaseRepresentation
bin111001010010…
…0100101110000
32002111220022001
41302210211300
530142044123
62551423344
7513200344
oct162444560
962456261
1030034288
1115a54229
12a084b54
1362b778b
143dbb624
1529840ad
hex1ca4970

30034288 has 40 divisors (see below), whose sum is σ = 63249920. Its totient is φ = 13763520.

The previous prime is 30034283. The next prime is 30034313. The reversal of 30034288 is 88243003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30034283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7831 + ... + 11017.

It is an arithmetic number, because the mean of its divisors is an integer number (1581248).

Almost surely, 230034288 is an apocalyptic number.

30034288 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30034288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31624960).

30034288 is an abundant number, since it is smaller than the sum of its proper divisors (33215632).

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

30034288 is a wasteful number, since it uses less digits than its factorization.

30034288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245 (or 3239 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 30034288 is about 5480.3547330442. The cubic root of 30034288 is about 310.8415841779.

The spelling of 30034288 in words is "thirty million, thirty-four thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 16 19 31 38 62 76 124 152 248 304 496 589 1178 2356 3187 4712 6374 9424 12748 25496 50992 60553 98797 121106 197594 242212 395188 484424 790376 968848 1580752 1877143 3754286 7508572 15017144 30034288