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23003442340 = 2251150172117
BaseRepresentation
bin10101011011000111…
…001010110010100100
32012101011000221120221
4111123013022302210
5334102340123330
614322335334124
71443022014364
oct253307126244
965334027527
1023003442340
11983493077a
12455b981344
1322279c5c58
1411831469a4
158e978eb7a
hex55b1caca4

23003442340 has 12 divisors (see below), whose sum is σ = 48307228956. Its totient is φ = 9201376928.

The previous prime is 23003442317. The next prime is 23003442347. The reversal of 23003442340 is 4324430032.

It can be written as a sum of positive squares in 2 ways, for example, as 4413210624 + 18590231716 = 66432^2 + 136346^2 .

It is not an unprimeable number, because it can be changed into a prime (23003442347) 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 3 ways as a sum of consecutive naturals, for example, 575086039 + ... + 575086078.

It is an arithmetic number, because the mean of its divisors is an integer number (4025602413).

Almost surely, 223003442340 is an apocalyptic number.

23003442340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23003442340 is an abundant number, since it is smaller than the sum of its proper divisors (25303786616).

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

23003442340 is a wasteful number, since it uses less digits than its factorization.

23003442340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150172126 (or 1150172124 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 23003442340 its reverse (4324430032), we get a palindrome (27327872372).

The spelling of 23003442340 in words is "twenty-three billion, three million, four hundred forty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 1150172117 2300344234 4600688468 5750860585 11501721170 23003442340