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231312233030333 = 71397227115440877
BaseRepresentation
bin110100100110000010010011…
…011110110110001010111101
31010100000020022020021121011012
4310212002103132312022331
5220304304423123432313
62135543212312405005
766502520524516040
oct6446022336661275
91110006266247135
10231312233030333
1167780a70280314
1221b39a3a9a6765
139c0b85b00a740
1441198010b6c57
151bb1e66bdeda8
hexd260937b62bd

231312233030333 has 32 divisors (see below), whose sum is σ = 288894029539584. Its totient is φ = 180331577690112.

The previous prime is 231312233030293. The next prime is 231312233030381. The reversal of 231312233030333 is 333030332213132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 231312233030333 - 216 = 231312232964797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231312233030333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231312233030033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55716710 + ... + 59724167.

It is an arithmetic number, because the mean of its divisors is an integer number (9027938423112).

Almost surely, 2231312233030333 is an apocalyptic number.

It is an amenable number.

231312233030333 is a deficient number, since it is larger than the sum of its proper divisors (57581796509251).

231312233030333 is a wasteful number, since it uses less digits than its factorization.

231312233030333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115441221.

The product of its (nonzero) digits is 52488, while the sum is 32.

Adding to 231312233030333 its reverse (333030332213132), we get a palindrome (564342565243465).

The spelling of 231312233030333 in words is "two hundred thirty-one trillion, three hundred twelve billion, two hundred thirty-three million, thirty thousand, three hundred thirty-three".

Divisors: 1 7 13 91 97 227 679 1261 1589 2951 8827 20657 22019 154133 286247 2003729 115440877 808086139 1500731401 10505119807 11197765069 26205079079 78384355483 145570945897 183435553553 340666028027 1018996621279 2384662196189 2541892670663 17793248694641 33044604718619 231312233030333