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30075474 = 23111335053
BaseRepresentation
bin111001010111…
…0101001010010
32002120222210110
41302232221102
530144403344
62552342150
7513431412
oct162565122
962528713
1030075474
1115a82170
12a0a4956
136300450
143dcc642
1529913b9
hex1caea52

30075474 has 32 divisors (see below), whose sum is σ = 70668864. Its totient is φ = 8412480.

The previous prime is 30075469. The next prime is 30075491. The reversal of 30075474 is 47457003.

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 15 ways as a sum of consecutive naturals, for example, 16669 + ... + 18384.

It is an arithmetic number, because the mean of its divisors is an integer number (2208402).

Almost surely, 230075474 is an apocalyptic number.

30075474 is an abundant number, since it is smaller than the sum of its proper divisors (40593390).

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

30075474 is a wasteful number, since it uses less digits than its factorization.

30075474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35082.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 30075474 is about 5484.1110492039. Note that the first 3 decimals coincide. The cubic root of 30075474 is about 310.9836049021.

The spelling of 30075474 in words is "thirty million, seventy-five thousand, four hundred seventy-four".

Divisors: 1 2 3 6 11 13 22 26 33 39 66 78 143 286 429 858 35053 70106 105159 210318 385583 455689 771166 911378 1156749 1367067 2313498 2734134 5012579 10025158 15037737 30075474