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20338469470 = 2511184895177
BaseRepresentation
bin10010111100010001…
…000110101001011110
31221111102102022002001
4102330101012221132
5313123122010340
613202055552514
71320002065234
oct227421065136
957442368061
1020338469470
118697599160
123b3738b73a
131bc1854727
14dad230954
157e082829a
hex4bc446a5e

20338469470 has 16 divisors (see below), whose sum is σ = 39937358448. Its totient is φ = 7395807040.

The previous prime is 20338469461. The next prime is 20338469479. The reversal of 20338469470 is 7496483302.

It is an interprime number because it is at equal distance from previous prime (20338469461) and next prime (20338469479).

It is a self number, because there is not a number n which added to its sum of digits gives 20338469470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20338469479) 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 7 ways as a sum of consecutive naturals, for example, 92447479 + ... + 92447698.

It is an arithmetic number, because the mean of its divisors is an integer number (2496084903).

Almost surely, 220338469470 is an apocalyptic number.

20338469470 is a deficient number, since it is larger than the sum of its proper divisors (19598888978).

20338469470 is a wasteful number, since it uses less digits than its factorization.

20338469470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184895195.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 20338469470 in words is "twenty billion, three hundred thirty-eight million, four hundred sixty-nine thousand, four hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 184895177 369790354 924475885 1848951770 2033846947 4067693894 10169234735 20338469470