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30675200 = 28524793
BaseRepresentation
bin111010100000…
…1000100000000
32010201110110112
41311001010000
530323101300
63013250452
7521510033
oct165010400
963643415
1030675200
1116351806
12a333a28
13648040a
14410701a
152a5de35
hex1d41100

30675200 has 54 divisors (see below), whose sum is σ = 75941754. Its totient is φ = 12267520.

The previous prime is 30675187. The next prime is 30675209. The reversal of 30675200 is 257603.

It can be written as a sum of positive squares in 3 ways, for example, as 5914624 + 24760576 = 2432^2 + 4976^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30675209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4004 + ... + 8796.

Almost surely, 230675200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30675200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37970877).

30675200 is an abundant number, since it is smaller than the sum of its proper divisors (45266554).

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

30675200 is an equidigital number, since it uses as much as digits as its factorization.

30675200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819 (or 4800 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 30675200 is about 5538.5196578147. The cubic root of 30675200 is about 313.0370923729.

The spelling of 30675200 in words is "thirty million, six hundred seventy-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 320 400 640 800 1280 1600 3200 4793 6400 9586 19172 23965 38344 47930 76688 95860 119825 153376 191720 239650 306752 383440 479300 613504 766880 958600 1227008 1533760 1917200 3067520 3834400 6135040 7668800 15337600 30675200