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831384907796 = 221069194430521
BaseRepresentation
bin11000001100100100110…
…01101111000000010100
32221110221122101020201002
430012102121233000110
5102110134014022141
61433533303522432
7114031331054642
oct14062231570024
92843848336632
10831384907796
112a0652119523
12115165159418
1360526237931
142c34c6b4192
151695d7cde9b
hexc19266f014

831384907796 has 12 divisors (see below), whose sum is σ = 1456284609780. Its totient is φ = 415303590720.

The previous prime is 831384907739. The next prime is 831384907799. The reversal of 831384907796 is 697709483138.

It can be written as a sum of positive squares in 2 ways, for example, as 285391008400 + 545993899396 = 534220^2 + 738914^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831384907799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97210985 + ... + 97219536.

It is an arithmetic number, because the mean of its divisors is an integer number (121357050815).

Almost surely, 2831384907796 is an apocalyptic number.

It is an amenable number.

831384907796 is a deficient number, since it is larger than the sum of its proper divisors (624899701984).

831384907796 is a wasteful number, since it uses less digits than its factorization.

831384907796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194431594 (or 194431592 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 65.

The spelling of 831384907796 in words is "eight hundred thirty-one billion, three hundred eighty-four million, nine hundred seven thousand, seven hundred ninety-six".

Divisors: 1 2 4 1069 2138 4276 194430521 388861042 777722084 207846226949 415692453898 831384907796