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2315143097 = 7331714289
BaseRepresentation
bin1000100111111110…
…0100011110111001
312222100100110021122
42021333210132321
514220134034342
61021421315025
7111241251221
oct21177443671
95870313248
102315143097
11a88924303
12547405a75
132ab847977
1417d691081
15d83b34d2
hex89fe47b9

2315143097 has 4 divisors (see below), whose sum is σ = 2346857460. Its totient is φ = 2283428736.

The previous prime is 2315143093. The next prime is 2315143099. The reversal of 2315143097 is 7903415132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1463904121 + 851238976 = 38261^2 + 29176^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315143097 - 22 = 2315143093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2315143093) 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 3 ways as a sum of consecutive naturals, for example, 15857072 + ... + 15857217.

It is an arithmetic number, because the mean of its divisors is an integer number (586714365).

Almost surely, 22315143097 is an apocalyptic number.

It is an amenable number.

2315143097 is a deficient number, since it is larger than the sum of its proper divisors (31714363).

2315143097 is an equidigital number, since it uses as much as digits as its factorization.

2315143097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31714362.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 2315143097 is about 48115.9339200644. The cubic root of 2315143097 is about 1322.8967408759.

The spelling of 2315143097 in words is "two billion, three hundred fifteen million, one hundred forty-three thousand, ninety-seven".

Divisors: 1 73 31714289 2315143097