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443040425 = 5217721617
BaseRepresentation
bin11010011010000…
…100001010101001
31010212122210012122
4122122010022221
51401404243200
6111543521025
713656532022
oct3232041251
91125583178
10443040425
112080a2913
12104459175
1370a30cc9
1442ba9c49
1528d66385
hex1a6842a9

443040425 has 6 divisors (see below), whose sum is σ = 549370158. Its totient is φ = 354432320.

The previous prime is 443040407. The next prime is 443040427. The reversal of 443040425 is 524040344.

It can be written as a sum of positive squares in 3 ways, for example, as 103449241 + 339591184 = 10171^2 + 18428^2 .

It is a de Polignac number, because none of the positive numbers 2k-443040425 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 443040394 and 443040403.

It is not an unprimeable number, because it can be changed into a prime (443040427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8860784 + ... + 8860833.

It is an arithmetic number, because the mean of its divisors is an integer number (91561693).

Almost surely, 2443040425 is an apocalyptic number.

It is an amenable number.

443040425 is a deficient number, since it is larger than the sum of its proper divisors (106329733).

443040425 is a wasteful number, since it uses less digits than its factorization.

443040425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17721627 (or 17721622 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 443040425 is about 21048.5254827981. The cubic root of 443040425 is about 762.3383801501.

Adding to 443040425 its reverse (524040344), we get a palindrome (967080769).

The spelling of 443040425 in words is "four hundred forty-three million, forty thousand, four hundred twenty-five".

Divisors: 1 5 25 17721617 88608085 443040425