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231231010210010 = 2529797348311069
BaseRepresentation
bin110100100100110110101010…
…001110011000000011011010
31010022201110122200012211000122
4310210312222032120003122
5220301442102103210020
62135442020513433242
766463613664112436
oct6444665216300332
91108643580184018
10231231010210010
116774a5800a1228
1221b2615156b822
139c03cb5751405
1441158d7b8b9c6
151baecb11c9125
hexd24daa3980da

231231010210010 has 16 divisors (see below), whose sum is σ = 430568087977800. Its totient is φ = 89303010839616.

The previous prime is 231231010210009. The next prime is 231231010210073. The reversal of 231231010210010 is 10012010132132.

It can be written as a sum of positive squares in 4 ways, for example, as 193352167542769 + 37878842667241 = 13905113^2 + 6154579^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398674155245 + ... + 398674155824.

Almost surely, 2231231010210010 is an apocalyptic number.

231231010210010 is a deficient number, since it is larger than the sum of its proper divisors (199337077767790).

231231010210010 is a wasteful number, since it uses less digits than its factorization.

231231010210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797348311105.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 231231010210010 its reverse (10012010132132), we get a palindrome (241243020342142).

The spelling of 231231010210010 in words is "two hundred thirty-one trillion, two hundred thirty-one billion, ten million, two hundred ten thousand, ten".

Divisors: 1 2 5 10 29 58 145 290 797348311069 1594696622138 3986741555345 7973483110690 23123101021001 46246202042002 115615505105005 231231010210010