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20306604284 = 225076651071
BaseRepresentation
bin10010111010010111…
…100011000011111100
31221102012110101020222
4102322113203003330
5313041442314114
613155001000512
71316134200641
oct227227430374
957365411228
1020306604284
11868060439a
123b28783138
131bb80787a5
14da8cd7dc8
157dcb3198e
hex4ba5e30fc

20306604284 has 6 divisors (see below), whose sum is σ = 35536557504. Its totient is φ = 10153302140.

The previous prime is 20306604259. The next prime is 20306604287. The reversal of 20306604284 is 48240660302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20306604287) 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 as a sum of consecutive naturals, namely, 2538325532 + ... + 2538325539.

It is an arithmetic number, because the mean of its divisors is an integer number (5922759584).

Almost surely, 220306604284 is an apocalyptic number.

It is an amenable number.

20306604284 is a deficient number, since it is larger than the sum of its proper divisors (15229953220).

20306604284 is a wasteful number, since it uses less digits than its factorization.

20306604284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5076651075 (or 5076651073 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 20306604284 in words is "twenty billion, three hundred six million, six hundred four thousand, two hundred eighty-four".

Divisors: 1 2 4 5076651071 10153302142 20306604284