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2318105225 = 52611520069
BaseRepresentation
bin1000101000101011…
…0111101010001001
312222112220221120002
42022022313222021
514221413331400
61022005012345
7111305366162
oct21212675211
95875827502
102318105225
11a8a567847
125483b40b5
132ac343cc7
1417dc22769
15d879aed5
hex8a2b7a89

2318105225 has 12 divisors (see below), whose sum is σ = 2921574540. Its totient is φ = 1824081600.

The previous prime is 2318105201. The next prime is 2318105233. The reversal of 2318105225 is 5225018132.

It can be written as a sum of positive squares in 6 ways, for example, as 728568064 + 1589537161 = 26992^2 + 39869^2 .

It is not a de Polignac number, because 2318105225 - 26 = 2318105161 is a prime.

It is a super-2 number, since 2×23181052252 = 10747223668344601250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 758510 + ... + 761559.

It is an arithmetic number, because the mean of its divisors is an integer number (243464545).

Almost surely, 22318105225 is an apocalyptic number.

2318105225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2318105225 is a deficient number, since it is larger than the sum of its proper divisors (603469315).

2318105225 is a wasteful number, since it uses less digits than its factorization.

2318105225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520140 (or 1520135 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 2318105225 is about 48146.7052351456. The cubic root of 2318105225 is about 1323.4606972963.

The spelling of 2318105225 in words is "two billion, three hundred eighteen million, one hundred five thousand, two hundred twenty-five".

Divisors: 1 5 25 61 305 1525 1520069 7600345 38001725 92724209 463621045 2318105225