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8231413231 = 45197182123
BaseRepresentation
bin1111010101010000…
…10110010111101111
3210020122212010011201
413222220112113233
5113324220210411
63440443430331
7410660600206
oct75250262757
923218763151
108231413231
113544466658
1217188253a7
13a12478722
1458130623d
153329ac3c1
hex1eaa165ef

8231413231 has 4 divisors (see below), whose sum is σ = 8231640552. Its totient is φ = 8231185912.

The previous prime is 8231413219. The next prime is 8231413237. The reversal of 8231413231 is 1323141328.

8231413231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8231413231 - 227 = 8097195503 is a prime.

It is a super-2 number, since 2×82314132312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8231413231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8231413237) 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, 45865 + ... + 136258.

It is an arithmetic number, because the mean of its divisors is an integer number (2057910138).

Almost surely, 28231413231 is an apocalyptic number.

8231413231 is a deficient number, since it is larger than the sum of its proper divisors (227321).

8231413231 is a wasteful number, since it uses less digits than its factorization.

8231413231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227320.

The product of its digits is 3456, while the sum is 28.

The square root of 8231413231 is about 90727.1361335736. The cubic root of 8231413231 is about 2019.1014229516.

Adding to 8231413231 its reverse (1323141328), we get a palindrome (9554554559).

The spelling of 8231413231 in words is "eight billion, two hundred thirty-one million, four hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 45197 182123 8231413231