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30234288 = 243789983
BaseRepresentation
bin111001101010…
…1011010110000
32002220001122110
41303111122300
530214444123
63000005320
7514662420
oct163253260
962801573
1030234288
1116080517
12a160840
136357816
144030480
1529c3493
hex1cd56b0

30234288 has 40 divisors (see below), whose sum is σ = 89264128. Its totient is φ = 8638272.

The previous prime is 30234287. The next prime is 30234299. The reversal of 30234288 is 88243203.

It is a super-2 number, since 2×302342882 = 1828224341733888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30234283) 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, 44656 + ... + 45327.

Almost surely, 230234288 is an apocalyptic number.

It is an amenable number.

30234288 is an abundant number, since it is smaller than the sum of its proper divisors (59029840).

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

30234288 is a wasteful number, since it uses less digits than its factorization.

30234288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90001 (or 89995 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 30234288 is about 5498.5714508407. The cubic root of 30234288 is about 311.5300287870.

The spelling of 30234288 in words is "thirty million, two hundred thirty-four thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 89983 179966 269949 359932 539898 629881 719864 1079796 1259762 1439728 1889643 2159592 2519524 3779286 4319184 5039048 7558572 10078096 15117144 30234288