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20302102000 = 245310151051
BaseRepresentation
bin10010111010000110…
…010111110111110000
31221101212222122021201
4102322012113313300
5313034314231000
613154320300544
71316051006515
oct227206276760
957355878251
1020302102000
1186790097a4
123b27171754
131bb716040b
14da848530c
157dc54296a
hex4ba197df0

20302102000 has 40 divisors (see below), whose sum is σ = 49090487472. Its totient is φ = 8120840000.

The previous prime is 20302101973. The next prime is 20302102003. The reversal of 20302102000 is 20120302.

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 (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302102003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5073526 + ... + 5077525.

Almost surely, 220302102000 is an apocalyptic number.

20302102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302102000 is an abundant number, since it is smaller than the sum of its proper divisors (28788385472).

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

20302102000 is a wasteful number, since it uses less digits than its factorization.

20302102000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10151074 (or 10151058 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 20302102000 its reverse (20120302), we get a palindrome (20322222302).

The spelling of 20302102000 in words is "twenty billion, three hundred two million, one hundred two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 10151051 20302102 40604204 50755255 81208408 101510510 162416816 203021020 253776275 406042040 507552550 812084080 1015105100 1268881375 2030210200 2537762750 4060420400 5075525500 10151051000 20302102000