Search a number
-
+
518130897 = 3401430699
BaseRepresentation
bin11110111000100…
…000110011010001
31100002221202222020
4132320200303101
52030120142042
6123225202053
715561016464
oct3670406321
91302852866
10518130897
11246520459
12125630329
138346283b
144cb552db
153074a3ec
hex1ee20cd1

518130897 has 8 divisors (see below), whose sum is σ = 692565600. Its totient is φ = 344558400.

The previous prime is 518130883. The next prime is 518130923. The reversal of 518130897 is 798031815.

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

It is not a de Polignac number, because 518130897 - 24 = 518130881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (518130827) 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, 214147 + ... + 216552.

It is an arithmetic number, because the mean of its divisors is an integer number (86570700).

Almost surely, 2518130897 is an apocalyptic number.

It is an amenable number.

518130897 is a deficient number, since it is larger than the sum of its proper divisors (174434703).

518130897 is a wasteful number, since it uses less digits than its factorization.

518130897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431103.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 518130897 is about 22762.4888138358. The cubic root of 518130897 is about 803.1805141760.

The spelling of 518130897 in words is "five hundred eighteen million, one hundred thirty thousand, eight hundred ninety-seven".

Divisors: 1 3 401 1203 430699 1292097 172710299 518130897