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20016169743 = 3111721312803
BaseRepresentation
bin10010101001000011…
…101000001100001111
31220122221221202222010
4102221003220030033
5311443114412433
613110103552303
71306006431003
oct225103501417
956587852863
1020016169743
118541673649
123a6745b693
131b6cb4982b
14d7c4d4703
157c23b1e63
hex4a90e830f

20016169743 has 16 divisors (see below), whose sum is σ = 26734188416. Its totient is φ = 13321156320.

The previous prime is 20016169711. The next prime is 20016169829. The reversal of 20016169743 is 34796161002.

It is not a de Polignac number, because 20016169743 - 25 = 20016169711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20016169643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7139580 + ... + 7142382.

It is an arithmetic number, because the mean of its divisors is an integer number (1670886776).

Almost surely, 220016169743 is an apocalyptic number.

20016169743 is a deficient number, since it is larger than the sum of its proper divisors (6718018673).

20016169743 is a wasteful number, since it uses less digits than its factorization.

20016169743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054.

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 20016169743 in words is "twenty billion, sixteen million, one hundred sixty-nine thousand, seven hundred forty-three".

Divisors: 1 3 1117 2131 2803 3351 6393 8409 2380327 3130951 5973193 7140981 9392853 17919579 6672056581 20016169743