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20302210983 = 3127391913597
BaseRepresentation
bin10010111010000110…
…110010011110100111
31221101220012011210010
4102322012302132213
5313034331222413
613154322501303
71316051642325
oct227206623647
957356164703
1020302210983
11867908366a
123b27204833
131bb719abc2
14da84b2d15
157dc564dc3
hex4ba1b27a7

20302210983 has 16 divisors (see below), whose sum is σ = 27291729920. Its totient is φ = 13423820256.

The previous prime is 20302210937. The next prime is 20302210987. The reversal of 20302210983 is 38901220302.

It is a happy number.

It is not a de Polignac number, because 20302210983 - 210 = 20302209959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20302210983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302210987) 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 15 ways as a sum of consecutive naturals, for example, 1486341 + ... + 1499937.

It is an arithmetic number, because the mean of its divisors is an integer number (1705733120).

Almost surely, 220302210983 is an apocalyptic number.

20302210983 is a deficient number, since it is larger than the sum of its proper divisors (6989518937).

20302210983 is a wasteful number, since it uses less digits than its factorization.

20302210983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17646.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 20302210983 in words is "twenty billion, three hundred two million, two hundred ten thousand, nine hundred eighty-three".

Divisors: 1 3 127 381 3919 11757 13597 40791 497713 1493139 1726819 5180457 53286643 159859929 6767403661 20302210983