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53991041 = 1340110357
BaseRepresentation
bin1100110111110…
…1011010000001
310202121000210012
43031331122001
5102310203131
65205114305
71223626166
oct315753201
9122530705
1053991041
11285272a5
12160b8995
13b254b80
14725606d
154b1752b
hex337d681

53991041 has 8 divisors (see below), whose sum is σ = 58294824. Its totient is φ = 49708800.

The previous prime is 53991017. The next prime is 53991053. The reversal of 53991041 is 14019935.

It can be written as a sum of positive squares in 4 ways, for example, as 14250625 + 39740416 = 3775^2 + 6304^2 .

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 53991041 - 26 = 53990977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53990989 and 53991007.

It is not an unprimeable number, because it can be changed into a prime (53991001) 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, 35 + ... + 10391.

It is an arithmetic number, because the mean of its divisors is an integer number (7286853).

Almost surely, 253991041 is an apocalyptic number.

It is an amenable number.

53991041 is a deficient number, since it is larger than the sum of its proper divisors (4303783).

53991041 is a wasteful number, since it uses less digits than its factorization.

53991041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10771.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 53991041 is about 7347.8596203248. The cubic root of 53991041 is about 377.9554107889.

The spelling of 53991041 in words is "fifty-three million, nine hundred ninety-one thousand, forty-one".

Divisors: 1 13 401 5213 10357 134641 4153157 53991041