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23404143144 = 2338531143227
BaseRepresentation
bin10101110010111111…
…101110001000101000
32020102002000122202110
4111302333232020220
5340412430040034
614430212002320
71455655635324
oct256277561050
966362018673
1023404143144
119a20035168
1246520003a0
13228ca21515
1411c0450984
1591ea40de9
hex572fee228

23404143144 has 32 divisors (see below), whose sum is σ = 58579002720. Its totient is φ = 7792228416.

The previous prime is 23404143131. The next prime is 23404143163. The reversal of 23404143144 is 44134140432.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 551142 + ... + 592085.

It is an arithmetic number, because the mean of its divisors is an integer number (1830593835).

Almost surely, 223404143144 is an apocalyptic number.

23404143144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23404143144 is an abundant number, since it is smaller than the sum of its proper divisors (35174859576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23404143144 is a wasteful number, since it uses less digits than its factorization.

23404143144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144089 (or 1144085 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 23404143144 its reverse (44134140432), we get a palindrome (67538283576).

The spelling of 23404143144 in words is "twenty-three billion, four hundred four million, one hundred forty-three thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 853 1706 2559 3412 5118 6824 10236 20472 1143227 2286454 3429681 4572908 6859362 9145816 13718724 27437448 975172631 1950345262 2925517893 3900690524 5851035786 7801381048 11702071572 23404143144