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444041220431 = 19149156849601
BaseRepresentation
bin1100111011000101110…
…10110101000101001111
31120110010222220011202002
412131202322311011033
524233344023023211
6535553440222515
744036520045404
oct6354272650517
91513128804662
10444041220431
11161353769136
127208460aa3b
1332b46a154a3
14176c53742ab
15b83d09903b
hex6762eb514f

444041220431 has 8 divisors (see below), whose sum is σ = 470548806000. Its totient is φ = 417847334400.

The previous prime is 444041220421. The next prime is 444041220449. The reversal of 444041220431 is 134022140444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 444041220431 - 218 = 444040958287 is a prime.

It is a super-2 number, since 2×4440412204312 (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 = 444041220394 and 444041220403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444041220401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78421970 + ... + 78427631.

It is an arithmetic number, because the mean of its divisors is an integer number (58818600750).

Almost surely, 2444041220431 is an apocalyptic number.

444041220431 is a deficient number, since it is larger than the sum of its proper divisors (26507585569).

444041220431 is a wasteful number, since it uses less digits than its factorization.

444041220431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156849769.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 444041220431 its reverse (134022140444), we get a palindrome (578063360875).

The spelling of 444041220431 in words is "four hundred forty-four billion, forty-one million, two hundred twenty thousand, four hundred thirty-one".

Divisors: 1 19 149 2831 156849601 2980142419 23370590549 444041220431