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4247261 = 53127631
BaseRepresentation
bin10000001100111011011101
321222210010222
4100030323131
52041403021
6231011125
751046454
oct20147335
97883128
104247261
112441037
121509aa5
13b59295
147c7b9b
1558d6ab
hex40cedd

4247261 has 8 divisors (see below), whose sum is σ = 4368384. Its totient is φ = 4127760.

The previous prime is 4247251. The next prime is 4247273. The reversal of 4247261 is 1627424.

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 4247261 - 222 = 52957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4247261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247251) 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, 6416 + ... + 7046.

It is an arithmetic number, because the mean of its divisors is an integer number (546048).

Almost surely, 24247261 is an apocalyptic number.

It is an amenable number.

4247261 is a deficient number, since it is larger than the sum of its proper divisors (121123).

4247261 is a wasteful number, since it uses less digits than its factorization.

4247261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811.

The product of its digits is 2688, while the sum is 26.

The square root of 4247261 is about 2060.8884006661. Note that the first 3 decimals coincide. The cubic root of 4247261 is about 161.9457853439.

The spelling of 4247261 in words is "four million, two hundred forty-seven thousand, two hundred sixty-one".

Divisors: 1 53 127 631 6731 33443 80137 4247261