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444321012431 = 1726136530143
BaseRepresentation
bin1100111011100111001…
…10001001101011001111
31120110212111101002012202
412131303212021223033
524234432134344211
6540041313152115
744046455201462
oct6356346115317
91513774332182
10444321012431
1116148769aa9a
127214225b63b
1332b8c98929a
14177105a72d9
15b85791553b
hex6773989acf

444321012431 has 4 divisors (see below), whose sum is σ = 470457542592. Its totient is φ = 418184482272.

The previous prime is 444321012361. The next prime is 444321012517. The reversal of 444321012431 is 134210123444.

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 444321012431 - 218 = 444320750287 is a prime.

It is a super-2 number, since 2×4443210124312 (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 = 444321012394 and 444321012403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444321012131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13068265055 + ... + 13068265088.

It is an arithmetic number, because the mean of its divisors is an integer number (117614385648).

Almost surely, 2444321012431 is an apocalyptic number.

444321012431 is a deficient number, since it is larger than the sum of its proper divisors (26136530161).

444321012431 is a wasteful number, since it uses less digits than its factorization.

444321012431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26136530160.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 444321012431 its reverse (134210123444), we get a palindrome (578531135875).

The spelling of 444321012431 in words is "four hundred forty-four billion, three hundred twenty-one million, twelve thousand, four hundred thirty-one".

Divisors: 1 17 26136530143 444321012431