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395041135447 = 756434447921
BaseRepresentation
bin1011011111110100100…
…10010101101101010111
31101202200002120221122201
411233322102111231113
522433021012313242
6501251314305331
740353326150650
oct5577222255527
91352602527581
10395041135447
11142599471032
126468a588247
132b33818306a
141519776c527
15a4213ba4b7
hex5bfa495b57

395041135447 has 4 divisors (see below), whose sum is σ = 451475583376. Its totient is φ = 338606687520.

The previous prime is 395041135439. The next prime is 395041135459. The reversal of 395041135447 is 744531140593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744531140593 = 977675578769.

It is a cyclic number.

It is not a de Polignac number, because 395041135447 - 23 = 395041135439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 395041135397 and 395041135406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395041135147) 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, 28217223954 + ... + 28217223967.

It is an arithmetic number, because the mean of its divisors is an integer number (112868895844).

Almost surely, 2395041135447 is an apocalyptic number.

395041135447 is a deficient number, since it is larger than the sum of its proper divisors (56434447929).

395041135447 is an equidigital number, since it uses as much as digits as its factorization.

395041135447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56434447928.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 395041135447 in words is "three hundred ninety-five billion, forty-one million, one hundred thirty-five thousand, four hundred forty-seven".

Divisors: 1 7 56434447921 395041135447