Search a number
-
+
557645105 = 5613118191
BaseRepresentation
bin100001001111001…
…111110100110001
31102212022022021102
4201033033310301
52120224120410
6131200134145
716550622323
oct4117176461
91385268242
10557645105
1126685a026
12136907355
138b6b9224
14540bd613
1533e532a5
hex213cfd31

557645105 has 8 divisors (see below), whose sum is σ = 669320064. Its totient is φ = 446018800.

The previous prime is 557645063. The next prime is 557645107. The reversal of 557645105 is 501546755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 557645105 - 212 = 557641009 is a prime.

It is a super-2 number, since 2×5576451052 = 621936126260922050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557645107) 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, 21560 + ... + 39750.

It is an arithmetic number, because the mean of its divisors is an integer number (83665008).

Almost surely, 2557645105 is an apocalyptic number.

It is an amenable number.

557645105 is a deficient number, since it is larger than the sum of its proper divisors (111674959).

557645105 is a wasteful number, since it uses less digits than its factorization.

557645105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24327.

The product of its (nonzero) digits is 105000, while the sum is 38.

The square root of 557645105 is about 23614.5104755529. The cubic root of 557645105 is about 823.1000563887.

The spelling of 557645105 in words is "five hundred fifty-seven million, six hundred forty-five thousand, one hundred five".

Divisors: 1 5 6131 18191 30655 90955 111529021 557645105