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30202000 = 245315101
BaseRepresentation
bin111001100110…
…1100010010000
32002211102100121
41303031202100
530212431000
62555200024
7514466323
oct163154220
962742317
1030202000
1116059234
12a146014
136345c0a
1440227ba
1529b8b1a
hex1ccd890

30202000 has 40 divisors (see below), whose sum is σ = 73033272. Its totient is φ = 12080000.

The previous prime is 30201989. The next prime is 30202009. The reversal of 30202000 is 20203.

It can be written as a sum of positive squares in 4 ways, for example, as 5161984 + 25040016 = 2272^2 + 5004^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202009) by changing a digit.

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, 5551 + ... + 9550.

Almost surely, 230202000 is an apocalyptic number.

It is an amenable number.

30202000 is an abundant number, since it is smaller than the sum of its proper divisors (42831272).

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

30202000 is a wasteful number, since it uses less digits than its factorization.

30202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15124 (or 15108 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 7.

The square root of 30202000 is about 5495.6346312323. The cubic root of 30202000 is about 311.4190922201.

Adding to 30202000 its reverse (20203), we get a palindrome (30222203).

The spelling of 30202000 in words is "thirty million, two hundred two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 15101 30202 60404 75505 120808 151010 241616 302020 377525 604040 755050 1208080 1510100 1887625 3020200 3775250 6040400 7550500 15101000 30202000