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3115302420 = 223551921707
BaseRepresentation
bin1011100110101111…
…1011111000010100
322001002222202112010
42321223323320110
522340004134140
61233043424220
7140125430226
oct27153737024
98032882463
103115302420
1113595638aa
1272b385070
133a8555219
14217a5c416
1513376c880
hexb9afbe14

3115302420 has 24 divisors (see below), whose sum is σ = 8722846944. Its totient is φ = 830747296.

The previous prime is 3115302403. The next prime is 3115302427. The reversal of 3115302420 is 242035113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115302427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25960794 + ... + 25960913.

It is an arithmetic number, because the mean of its divisors is an integer number (363451956).

Almost surely, 23115302420 is an apocalyptic number.

3115302420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3115302420 is an abundant number, since it is smaller than the sum of its proper divisors (5607544524).

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

3115302420 is a wasteful number, since it uses less digits than its factorization.

3115302420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51921719 (or 51921717 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3115302420 is about 55814.8942487577. The cubic root of 3115302420 is about 1460.4949876029.

Adding to 3115302420 its reverse (242035113), we get a palindrome (3357337533).

The spelling of 3115302420 in words is "three billion, one hundred fifteen million, three hundred two thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 51921707 103843414 155765121 207686828 259608535 311530242 519217070 623060484 778825605 1038434140 1557651210 3115302420