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30326128 = 2471914251
BaseRepresentation
bin111001110101…
…1110101110000
32010001201121221
41303223311300
530230414003
63001554424
7515524240
oct163536560
963051557
1030326128
1116133518
12a1a5a14
13638a571
144055b20
1529e07bd
hex1cebd70

30326128 has 40 divisors (see below), whose sum is σ = 70689920. Its totient is φ = 12312000.

The previous prime is 30326117. The next prime is 30326129. The reversal of 30326128 is 82162303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30326129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4998 + ... + 9253.

It is an arithmetic number, because the mean of its divisors is an integer number (1767248).

Almost surely, 230326128 is an apocalyptic number.

30326128 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30326128 is an abundant number, since it is smaller than the sum of its proper divisors (40363792).

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

30326128 is a wasteful number, since it uses less digits than its factorization.

30326128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14285 (or 14279 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 30326128 is about 5506.9163785189. The cubic root of 30326128 is about 311.8451455955.

The spelling of 30326128 in words is "thirty million, three hundred twenty-six thousand, one hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 19 28 38 56 76 112 133 152 266 304 532 1064 2128 14251 28502 57004 99757 114008 199514 228016 270769 399028 541538 798056 1083076 1596112 1895383 2166152 3790766 4332304 7581532 15163064 30326128