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634458241 = 171914913183
BaseRepresentation
bin100101110100010…
…001000010000001
31122012211211002101
4211310101002001
52244410130431
6142542350401
721502543324
oct4564210201
91565754071
10634458241
112a615395a
1215858b401
13a15a1ba1
14603967bb
153aa77961
hex25d11081

634458241 has 16 divisors (see below), whose sum is σ = 711936000. Its totient is φ = 561869568.

The previous prime is 634458229. The next prime is 634458263. The reversal of 634458241 is 142854436.

It is a 3-Lehmer number, since φ(634458241) divides (634458241-1)3.

It is a cyclic number.

It is not a de Polignac number, because 634458241 - 27 = 634458113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 634458241.

It is not an unprimeable number, because it can be changed into a prime (634458541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41536 + ... + 54718.

It is an arithmetic number, because the mean of its divisors is an integer number (44496000).

Almost surely, 2634458241 is an apocalyptic number.

It is an amenable number.

634458241 is a deficient number, since it is larger than the sum of its proper divisors (77477759).

634458241 is a wasteful number, since it uses less digits than its factorization.

634458241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13368.

The product of its digits is 92160, while the sum is 37.

The square root of 634458241 is about 25188.4545178937. The cubic root of 634458241 is about 859.2792956934.

The spelling of 634458241 in words is "six hundred thirty-four million, four hundred fifty-eight thousand, two hundred forty-one".

Divisors: 1 17 19 149 323 2533 2831 13183 48127 224111 250477 1964267 4258109 33392539 37321073 634458241