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43290244897 = 415310423849
BaseRepresentation
bin101000010100010011…
…001011011100100001
311010201222020021222121
4220110103023130201
51202124300314042
631515352104241
73061526003344
oct502423133441
9133658207877
1043290244897
11173a523a7a9
128481995081
13410b92a633
14214956845b
1511d57ae367
hexa144cb721

43290244897 has 4 divisors (see below), whose sum is σ = 43300672900. Its totient is φ = 43279816896.

The previous prime is 43290244867. The next prime is 43290244901. The reversal of 43290244897 is 79844209234.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1033686801 + 42256558096 = 32151^2 + 205564^2 .

It is a cyclic number.

It is not a de Polignac number, because 43290244897 - 215 = 43290212129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43290244867) 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, 5207772 + ... + 5216077.

It is an arithmetic number, because the mean of its divisors is an integer number (10825168225).

Almost surely, 243290244897 is an apocalyptic number.

It is an amenable number.

43290244897 is a deficient number, since it is larger than the sum of its proper divisors (10428003).

43290244897 is a wasteful number, since it uses less digits than its factorization.

43290244897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10428002.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 43290244897 in words is "forty-three billion, two hundred ninety million, two hundred forty-four thousand, eight hundred ninety-seven".

Divisors: 1 4153 10423849 43290244897