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32409138905 = 51113235719231
BaseRepresentation
bin11110001011101111…
…000011011011011001
310002122122111211122222
4132023233003123121
51012333214421110
622515532153425
72225062064303
oct361357033331
9102578454588
1032409138905
1112821128820
126345908875
133096530690
1417d63a6973
15c9a3a7c55
hex78bbc36d9

32409138905 has 32 divisors (see below), whose sum is σ = 45711848448. Its totient is φ = 21746822400.

The previous prime is 32409138887. The next prime is 32409138913. The reversal of 32409138905 is 50983190423.

It is not a de Polignac number, because 32409138905 - 28 = 32409138649 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1675640 + ... + 1694870.

It is an arithmetic number, because the mean of its divisors is an integer number (1428495264).

Almost surely, 232409138905 is an apocalyptic number.

It is an amenable number.

32409138905 is a deficient number, since it is larger than the sum of its proper divisors (13302709543).

32409138905 is a wasteful number, since it uses less digits than its factorization.

32409138905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21617.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 32409138905 in words is "thirty-two billion, four hundred nine million, one hundred thirty-eight thousand, nine hundred five".

Divisors: 1 5 11 13 55 65 143 715 2357 11785 19231 25927 30641 96155 129635 153205 211541 250003 337051 1057705 1250015 1685255 2750033 13750165 45327467 226637335 498602137 589257071 2493010685 2946285355 6481827781 32409138905