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16001241 = 35333747
BaseRepresentation
bin111101000010…
…100011011001
31010002221120120
4331002203121
513044014431
61330543453
7253002564
oct75024331
933087516
1016001241
119039a73
125437b89
1334132b9
1421a74db
151611196
hexf428d9

16001241 has 4 divisors (see below), whose sum is σ = 21334992. Its totient is φ = 10667492.

The previous prime is 16001231. The next prime is 16001269. The reversal of 16001241 is 14210061.

16001241 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16001241 - 27 = 16001113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16001241.

It is not an unprimeable number, because it can be changed into a prime (16001201) 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, 2666871 + ... + 2666876.

It is an arithmetic number, because the mean of its divisors is an integer number (5333748).

Almost surely, 216001241 is an apocalyptic number.

It is an amenable number.

16001241 is a deficient number, since it is larger than the sum of its proper divisors (5333751).

16001241 is an equidigital number, since it uses as much as digits as its factorization.

16001241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333750.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 16001241 is about 4000.1551219921. The cubic root of 16001241 is about 251.9907246523.

The spelling of 16001241 in words is "sixteen million, one thousand, two hundred forty-one".

Divisors: 1 3 5333747 16001241