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20301421139 = 437116673989
BaseRepresentation
bin10010111010000011…
…110001101001010011
31221101211201001022122
4102322003301221103
5313034130434024
613154253524455
71316042142506
oct227203615123
957354631278
1020301421139
1186786941aa
123b26aa372b
131bb6c8253c
14da834913d
157dc45ad5e
hex4ba0f1a53

20301421139 has 16 divisors (see below), whose sum is σ = 21084053760. Its totient is φ = 19533383520.

The previous prime is 20301421121. The next prime is 20301421159. The reversal of 20301421139 is 93112410302.

It is a cyclic number.

It is not a de Polignac number, because 20301421139 - 28 = 20301420883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20301421159) 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 15 ways as a sum of consecutive naturals, for example, 5087357 + ... + 5091345.

It is an arithmetic number, because the mean of its divisors is an integer number (1317753360).

Almost surely, 220301421139 is an apocalyptic number.

20301421139 is a deficient number, since it is larger than the sum of its proper divisors (782632621).

20301421139 is a wasteful number, since it uses less digits than its factorization.

20301421139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5770.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 20301421139 in words is "twenty billion, three hundred one million, four hundred twenty-one thousand, one hundred thirty-nine".

Divisors: 1 43 71 1667 3053 3989 71681 118357 171527 283219 5089351 6649663 12178417 285935509 472126073 20301421139