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2331112431 = 3437323391
BaseRepresentation
bin1000101011110001…
…1111001111101111
320000110101210002110
42022330133033233
514233231044211
61023151455103
7111524062104
oct21274371757
96013353073
102331112431
11a969412aa
12550827493
132b1c4958b
1418184aaab
15d99b9ea6
hex8af1f3ef

2331112431 has 24 divisors (see below), whose sum is σ = 3225547776. Its totient is φ = 1496698560.

The previous prime is 2331112411. The next prime is 2331112447. The reversal of 2331112431 is 1342111332.

It is a de Polignac number, because none of the positive numbers 2k-2331112431 is a prime.

It is a super-2 number, since 2×23311124312 = 10868170331925459522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2331112398 and 2331112407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331112411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 685746 + ... + 689136.

It is an arithmetic number, because the mean of its divisors is an integer number (134397824).

Almost surely, 22331112431 is an apocalyptic number.

2331112431 is a deficient number, since it is larger than the sum of its proper divisors (894435345).

2331112431 is an equidigital number, since it uses as much as digits as its factorization.

2331112431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583 (or 3510 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 2331112431 is about 48281.5951579896. The cubic root of 2331112431 is about 1325.9314548853.

Adding to 2331112431 its reverse (1342111332), we get a palindrome (3673223763).

The spelling of 2331112431 in words is "two billion, three hundred thirty-one million, one hundred twelve thousand, four hundred thirty-one".

Divisors: 1 3 43 73 129 219 3139 3391 5329 9417 10173 15987 145813 229147 247543 437439 687441 742629 10644349 18070639 31933047 54211917 777037477 2331112431