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2440214131431 = 3813404710477
BaseRepresentation
bin100011100000101000000…
…110001011001011100111
322122021121201101202120010
4203200220012023023213
5304440024304201211
65105004025341303
7341204531611536
oct43405006131347
98567551352503
102440214131431
1186098629634a
12334b1a937833
1314915a41944b
148616d84031d
15437200a94a6
hex2382818b2e7

2440214131431 has 4 divisors (see below), whose sum is σ = 3253618841912. Its totient is φ = 1626809420952.

The previous prime is 2440214131429. The next prime is 2440214131441. The reversal of 2440214131431 is 1341314120442.

It is a happy number.

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

It is not a de Polignac number, because 2440214131431 - 21 = 2440214131429 is a prime.

It is a super-2 number, since 2×24402141314312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440214131441) 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, 406702355236 + ... + 406702355241.

It is an arithmetic number, because the mean of its divisors is an integer number (813404710478).

Almost surely, 22440214131431 is an apocalyptic number.

2440214131431 is a deficient number, since it is larger than the sum of its proper divisors (813404710481).

2440214131431 is an equidigital number, since it uses as much as digits as its factorization.

2440214131431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813404710480.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 2440214131431 its reverse (1341314120442), we get a palindrome (3781528251873).

The spelling of 2440214131431 in words is "two trillion, four hundred forty billion, two hundred fourteen million, one hundred thirty-one thousand, four hundred thirty-one".

Divisors: 1 3 813404710477 2440214131431