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20314143454 = 211923370157
BaseRepresentation
bin10010111010110100…
…010011101011011110
31221102201122102001111
4102322310103223132
5313100410042304
613155430332234
71316255241013
oct227264235336
957381572044
1020314143454
118684893710
123b2b1ba07a
131bb97b8237
14da9cdb70a
157dd620704
hex4bad13ade

20314143454 has 8 divisors (see below), whose sum is σ = 33241325688. Its totient is φ = 9233701560.

The previous prime is 20314143449. The next prime is 20314143517. The reversal of 20314143454 is 45434141302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461685057 + ... + 461685100.

It is an arithmetic number, because the mean of its divisors is an integer number (4155165711).

Almost surely, 220314143454 is an apocalyptic number.

20314143454 is a deficient number, since it is larger than the sum of its proper divisors (12927182234).

20314143454 is a wasteful number, since it uses less digits than its factorization.

20314143454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923370170.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 20314143454 its reverse (45434141302), we get a palindrome (65748284756).

The spelling of 20314143454 in words is "twenty billion, three hundred fourteen million, one hundred forty-three thousand, four hundred fifty-four".

Divisors: 1 2 11 22 923370157 1846740314 10157071727 20314143454