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23306331420 = 2233543159873
BaseRepresentation
bin10101101101001010…
…100110010100011100
32020011020222022022000
4111231022212110130
5340212410101140
614412355322300
71453360356051
oct255512462434
966136868260
1023306331420
11997a8a8829
1246252b0390
132275695a68
1411b146d028
1591616ea30
hex56d2a651c

23306331420 has 48 divisors (see below), whose sum is σ = 72508588320. Its totient is φ = 6215021568.

The previous prime is 23306331383. The next prime is 23306331439. The reversal of 23306331420 is 2413360332.

It is a happy number.

23306331420 is a `hidden beast` number, since 2 + 3 + 3 + 0 + 633 + 1 + 4 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21579397 + ... + 21580476.

It is an arithmetic number, because the mean of its divisors is an integer number (1510595590).

Almost surely, 223306331420 is an apocalyptic number.

23306331420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23306331420 is an abundant number, since it is smaller than the sum of its proper divisors (49202256900).

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

23306331420 is a wasteful number, since it uses less digits than its factorization.

23306331420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43159891 (or 43159883 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 23306331420 its reverse (2413360332), we get a palindrome (25719691752).

The spelling of 23306331420 in words is "twenty-three billion, three hundred six million, three hundred thirty-one thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 43159873 86319746 129479619 172639492 215799365 258959238 388438857 431598730 517918476 647398095 776877714 863197460 1165316571 1294796190 1553755428 1942194285 2330633142 2589592380 3884388570 4661266284 5826582855 7768777140 11653165710 23306331420