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30240352 = 254321977
BaseRepresentation
bin111001101011…
…0111001100000
32002220100222001
41303112321200
530220142402
63000053344
7515016202
oct163267140
962810861
1030240352
111608502a
12a164254
13635a4cc
144032772
1529c5187
hex1cd6e60

30240352 has 24 divisors (see below), whose sum is σ = 60923016. Its totient is φ = 14767872.

The previous prime is 30240349. The next prime is 30240389. The reversal of 30240352 is 25304203.

It is a congruent number.

It is an unprimeable number.

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, 9613 + ... + 12364.

It is an arithmetic number, because the mean of its divisors is an integer number (2538459).

Almost surely, 230240352 is an apocalyptic number.

30240352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30240352 is an abundant number, since it is smaller than the sum of its proper divisors (30682664).

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

30240352 is a wasteful number, since it uses less digits than its factorization.

30240352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22030 (or 22022 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 30240352 is about 5499.1228391444. The cubic root of 30240352 is about 311.5508549410.

Adding to 30240352 its reverse (25304203), we get a palindrome (55544555).

The spelling of 30240352 in words is "thirty million, two hundred forty thousand, three hundred fifty-two".

Divisors: 1 2 4 8 16 32 43 86 172 344 688 1376 21977 43954 87908 175816 351632 703264 945011 1890022 3780044 7560088 15120176 30240352