Search a number
-
+
210331233232231 = 2976918475106373
BaseRepresentation
bin101111110100101110001110…
…011100010010010101100111
31000120201110200021121221002211
4233310232032130102111213
5210032031331201412411
62023200500140144251
762205634015001536
oct5764561634222547
91016643607557084
10210331233232231
1161021a7a921291
121b70b728538087
1390491c4c697b7
1439d212c00031d
15194b2e86bc221
hexbf4b8e712567

210331233232231 has 16 divisors (see below), whose sum is σ = 217984978411200. Its totient is φ = 202704503758848.

The previous prime is 210331233232229. The next prime is 210331233232321. The reversal of 210331233232231 is 132232332133012.

It is a cyclic number.

It is not a de Polignac number, because 210331233232231 - 21 = 210331233232229 is a prime.

It is a super-2 number, since 2×2103312332322312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210331233232193 and 210331233232202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210331233232531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38636761 + ... + 43743133.

It is an arithmetic number, because the mean of its divisors is an integer number (13624061150700).

Almost surely, 2210331233232231 is an apocalyptic number.

210331233232231 is a deficient number, since it is larger than the sum of its proper divisors (7653745178969).

210331233232231 is a wasteful number, since it uses less digits than its factorization.

210331233232231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5109018.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 210331233232231 its reverse (132232332133012), we get a palindrome (342563565365243).

The spelling of 210331233232231 in words is "two hundred ten trillion, three hundred thirty-one billion, two hundred thirty-three million, two hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 29 769 1847 22301 53563 1420343 5106373 41189947 148084817 3926800837 9431470931 113877224273 273512656999 7252801145939 210331233232231