Search a number
-
+
554140520 = 23513853513
BaseRepresentation
bin100001000001111…
…000001101101000
31102121201020212222
4201001320031220
52113324444040
6130553053212
716506055013
oct4101701550
91377636788
10554140520
11264885a7a
121356b7208
138aa5cccb
145384a37a
15339aebb5
hex21078368

554140520 has 16 divisors (see below), whose sum is σ = 1246816260. Its totient is φ = 221656192.

The previous prime is 554140511. The next prime is 554140537. The reversal of 554140520 is 25041455.

It can be written as a sum of positive squares in 2 ways, for example, as 540934564 + 13205956 = 23258^2 + 3634^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 554140520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6926717 + ... + 6926796.

Almost surely, 2554140520 is an apocalyptic number.

It is an amenable number.

554140520 is an abundant number, since it is smaller than the sum of its proper divisors (692675740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

554140520 is a wasteful number, since it uses less digits than its factorization.

554140520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13853524 (or 13853520 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 554140520 is about 23540.1894639784. The cubic root of 554140520 is about 821.3721424698.

Adding to 554140520 its reverse (25041455), we get a palindrome (579181975).

The spelling of 554140520 in words is "five hundred fifty-four million, one hundred forty thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 13853513 27707026 55414052 69267565 110828104 138535130 277070260 554140520