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30746000 = 245315373
BaseRepresentation
bin111010101001…
…0010110010000
32010212001120202
41311102112100
530332333000
63014554332
7522223325
oct165222620
963761522
1030746000
111639aa1a
12a3689a8
1364a66cc
144124b4c
152a74dd5
hex1d52590

30746000 has 40 divisors (see below), whose sum is σ = 74348664. Its totient is φ = 12297600.

The previous prime is 30745999. The next prime is 30746033. The reversal of 30746000 is 64703.

It can be written as a sum of positive squares in 4 ways, for example, as 8202496 + 22543504 = 2864^2 + 4748^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5687 + ... + 9686.

Almost surely, 230746000 is an apocalyptic number.

It is an amenable number.

30746000 is an abundant number, since it is smaller than the sum of its proper divisors (43602664).

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

30746000 is a wasteful number, since it uses less digits than its factorization.

30746000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15396 (or 15380 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 30746000 is about 5544.9075736210. The cubic root of 30746000 is about 313.2777427660.

The spelling of 30746000 in words is "thirty million, seven hundred forty-six thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 15373 30746 61492 76865 122984 153730 245968 307460 384325 614920 768650 1229840 1537300 1921625 3074600 3843250 6149200 7686500 15373000 30746000