Search a number
-
+
5185578252 = 2232318788327
BaseRepresentation
bin1001101010001010…
…11010010100001100
3111101101120200001210
410311011122110030
541110002001002
62214320534420
7242334454641
oct46505322414
914341520053
105185578252
11222113a768
121008781410
136484367ca
143729abdc8
152053b296c
hex13515a50c

5185578252 has 24 divisors (see below), whose sum is σ = 12625756416. Its totient is φ = 1653372688.

The previous prime is 5185578217. The next prime is 5185578257. The reversal of 5185578252 is 2528755815.

It is not an unprimeable number, because it can be changed into a prime (5185578257) 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, 9393888 + ... + 9394439.

It is an arithmetic number, because the mean of its divisors is an integer number (526073184).

Almost surely, 25185578252 is an apocalyptic number.

It is an amenable number.

5185578252 is an abundant number, since it is smaller than the sum of its proper divisors (7440178164).

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

5185578252 is a wasteful number, since it uses less digits than its factorization.

5185578252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18788357 (or 18788355 counting only the distinct ones).

The product of its digits is 1120000, while the sum is 48.

The square root of 5185578252 is about 72010.9592492698. The cubic root of 5185578252 is about 1730.8751018311.

The spelling of 5185578252 in words is "five billion, one hundred eighty-five million, five hundred seventy-eight thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 18788327 37576654 56364981 75153308 112729962 225459924 432131521 864263042 1296394563 1728526084 2592789126 5185578252