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2315641613 = 2718544803
BaseRepresentation
bin1000101000000101…
…1110001100001101
312222101021210010012
42022001132030031
514220301012423
61021440123005
7111245425505
oct21201361415
95871253105
102315641613
11a891348aa
12547606465
132ab99084c
1417d780a05
15d8461078
hex8a05e30d

2315641613 has 4 divisors (see below), whose sum is σ = 2324186688. Its totient is φ = 2307096540.

The previous prime is 2315641607. The next prime is 2315641649. The reversal of 2315641613 is 3161465132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2315641613 - 210 = 2315640589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2315641613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315671613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4272131 + ... + 4272672.

It is an arithmetic number, because the mean of its divisors is an integer number (581046672).

Almost surely, 22315641613 is an apocalyptic number.

It is an amenable number.

2315641613 is a deficient number, since it is larger than the sum of its proper divisors (8545075).

2315641613 is an equidigital number, since it uses as much as digits as its factorization.

2315641613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8545074.

The product of its digits is 12960, while the sum is 32.

The square root of 2315641613 is about 48121.1140041458. The cubic root of 2315641613 is about 1322.9916864631.

The spelling of 2315641613 in words is "two billion, three hundred fifteen million, six hundred forty-one thousand, six hundred thirteen".

Divisors: 1 271 8544803 2315641613