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41389641 = 3229158581
BaseRepresentation
bin1001110111100…
…0111001001001
32212212210220200
42131320321021
541043432031
64035042413
71011543336
oct235707111
985783820
1041389641
11213aa717
1211a40409
138762217
1456d598d
1539788e6
hex2778e49

41389641 has 12 divisors (see below), whose sum is σ = 61846980. Its totient is φ = 26641440.

The previous prime is 41389639. The next prime is 41389669. The reversal of 41389641 is 14698314.

41389641 is a `hidden beast` number, since 4 + 1 + 3 + 8 + 9 + 641 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23242041 + 18147600 = 4821^2 + 4260^2 .

It is not a de Polignac number, because 41389641 - 21 = 41389639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 41389596 and 41389605.

It is not an unprimeable number, because it can be changed into a prime (41389631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79030 + ... + 79551.

It is an arithmetic number, because the mean of its divisors is an integer number (5153915).

Almost surely, 241389641 is an apocalyptic number.

It is an amenable number.

41389641 is a deficient number, since it is larger than the sum of its proper divisors (20457339).

41389641 is a wasteful number, since it uses less digits than its factorization.

41389641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158616 (or 158613 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 41389641 is about 6433.4781417209. The cubic root of 41389641 is about 345.9106126360.

The spelling of 41389641 in words is "forty-one million, three hundred eighty-nine thousand, six hundred forty-one".

Divisors: 1 3 9 29 87 261 158581 475743 1427229 4598849 13796547 41389641