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243122050031 = 734731721433
BaseRepresentation
bin1110001001101100110…
…1000001001111101111
3212020112121000210111112
43202123031001033233
512440403221100111
6303404433142235
723364535220330
oct3423315011757
9766477023445
10243122050031
1194120071683
123b1510ba97b
1319c0714a003
14baa5186287
1564ce0ace8b
hex389b3413ef

243122050031 has 4 divisors (see below), whose sum is σ = 277853771472. Its totient is φ = 208390328592.

The previous prime is 243122050021. The next prime is 243122050033. The reversal of 243122050031 is 130050221342.

Adding to 243122050031 its reverse (130050221342), we get a palindrome (373172271373).

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 243122050031 - 26 = 243122049967 is a prime.

It is a super-2 number, since 2×2431220500312 (a number of 24 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 = 243122049979 and 243122050006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243122050033) 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, 17365860710 + ... + 17365860723.

It is an arithmetic number, because the mean of its divisors is an integer number (69463442868).

Almost surely, 2243122050031 is an apocalyptic number.

243122050031 is a deficient number, since it is larger than the sum of its proper divisors (34731721441).

243122050031 is an equidigital number, since it uses as much as digits as its factorization.

243122050031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34731721440.

The product of its (nonzero) digits is 1440, while the sum is 23.

The spelling of 243122050031 in words is "two hundred forty-three billion, one hundred twenty-two million, fifty thousand, thirty-one".

Divisors: 1 7 34731721433 243122050031