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2440124431 = 7613206471
BaseRepresentation
bin1001000101110001…
…0101100000001111
320022001112011102221
42101130111200033
514444132440211
61042044200211
7114316500253
oct22134254017
96261464387
102440124431
111042428668
12581239067
132cb6c7014
14192106263
15e434ec71
hex9171580f

2440124431 has 4 divisors (see below), whose sum is σ = 2443331664. Its totient is φ = 2436917200.

The previous prime is 2440124377. The next prime is 2440124437. The reversal of 2440124431 is 1344210442.

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 2440124431 - 29 = 2440123919 is a prime.

It is a super-2 number, since 2×24401244312 = 11908414477526147522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2440124396 and 2440124405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440124437) 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, 1602475 + ... + 1603996.

It is an arithmetic number, because the mean of its divisors is an integer number (610832916).

Almost surely, 22440124431 is an apocalyptic number.

2440124431 is a deficient number, since it is larger than the sum of its proper divisors (3207233).

2440124431 is an equidigital number, since it uses as much as digits as its factorization.

2440124431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3207232.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 2440124431 is about 49397.6156408384. The cubic root of 2440124431 is about 1346.2859838815.

Adding to 2440124431 its reverse (1344210442), we get a palindrome (3784334873).

The spelling of 2440124431 in words is "two billion, four hundred forty million, one hundred twenty-four thousand, four hundred thirty-one".

Divisors: 1 761 3206471 2440124431