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20302102112 = 251016281591
BaseRepresentation
bin10010111010000110…
…010111111001100000
31221101212222122102212
4102322012113321200
5313034314231422
613154320301252
71316051010035
oct227206277140
957355878385
1020302102112
118679009896
123b27171828
131bb7160496
14da848538c
157dc5429e2
hex4ba197e60

20302102112 has 24 divisors (see below), whose sum is σ = 40365510192. Its totient is φ = 10050544000.

The previous prime is 20302102111. The next prime is 20302102141. The reversal of 20302102112 is 21120120302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302102111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3137564 + ... + 3144027.

It is an arithmetic number, because the mean of its divisors is an integer number (1681896258).

Almost surely, 220302102112 is an apocalyptic number.

It is an amenable number.

20302102112 is a deficient number, since it is larger than the sum of its proper divisors (20063408080).

20302102112 is a wasteful number, since it uses less digits than its factorization.

20302102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6281702 (or 6281694 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20302102112 its reverse (21120120302), we get a palindrome (41422222414).

The spelling of 20302102112 in words is "twenty billion, three hundred two million, one hundred two thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 101 202 404 808 1616 3232 6281591 12563182 25126364 50252728 100505456 201010912 634440691 1268881382 2537762764 5075525528 10151051056 20302102112