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231505112305106 = 2521844992629307
BaseRepresentation
bin110100101000110101111011…
…111110111000110111010010
31010100200200011022122221222122
4310220311323332320313102
5220320434432222230411
62140211551432534242
766522456332352143
oct6450657376706722
91110620138587878
10231505112305106
1167845848630232
1221b6b2a9851382
139c23ab9004923
144124c9b5b3aca
151bb6ea4e4e9db
hexd28d7bfb8dd2

231505112305106 has 16 divisors (see below), whose sum is σ = 347928439716000. Its totient is φ = 115528971161760.

The previous prime is 231505112305087. The next prime is 231505112305127. The reversal of 231505112305106 is 601503211505132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86733305 + ... + 89362611.

It is an arithmetic number, because the mean of its divisors is an integer number (21745527482250).

Almost surely, 2231505112305106 is an apocalyptic number.

231505112305106 is a deficient number, since it is larger than the sum of its proper divisors (116423327410894).

231505112305106 is a wasteful number, since it uses less digits than its factorization.

231505112305106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2714329.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 231505112305106 in words is "two hundred thirty-one trillion, five hundred five billion, one hundred twelve million, three hundred five thousand, one hundred six".

Divisors: 1 2 521 1042 84499 168998 2629307 5258614 44023979 88047958 1369868947 2739737894 222173812193 444347624386 115752556152553 231505112305106