Search a number
-
+
4243131210431 = 18898032245277
BaseRepresentation
bin111101101111101110010…
…101000001101010111111
3120000122021002221220010202
4331233232111001222333
51024004413042213211
613005133443354115
7615361514125241
oct75575625015277
916018232856122
104243131210431
111396557a4a623
1258642008293b
1324a182b020a9
141095237cc091
1575590c7753b
hex3dbee541abf

4243131210431 has 4 divisors (see below), whose sum is σ = 4243135345512. Its totient is φ = 4243127075352.

The previous prime is 4243131210421. The next prime is 4243131210443. The reversal of 4243131210431 is 1340121313424.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4243131210431 - 210 = 4243131209407 is a prime.

It is a super-2 number, since 2×42431312104312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4243131210394 and 4243131210403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243131210421) 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, 767165 + ... + 3012441.

It is an arithmetic number, because the mean of its divisors is an integer number (1060783836378).

Almost surely, 24243131210431 is an apocalyptic number.

4243131210431 is a deficient number, since it is larger than the sum of its proper divisors (4135081).

4243131210431 is a wasteful number, since it uses less digits than its factorization.

4243131210431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135080.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 4243131210431 its reverse (1340121313424), we get a palindrome (5583252523855).

The spelling of 4243131210431 in words is "four trillion, two hundred forty-three billion, one hundred thirty-one million, two hundred ten thousand, four hundred thirty-one".

Divisors: 1 1889803 2245277 4243131210431