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415315243 = 7193122671
BaseRepresentation
bin11000110000010…
…011010100101011
31001221111012102001
4120300103110223
51322310041433
6105113351431
713202056420
oct3060232453
91057435361
10415315243
111a3486542
12b7108577
1368074585
143d22dd47
15266db57d
hex18c1352b

415315243 has 8 divisors (see below), whose sum is σ = 499627520. Its totient is φ = 337248360.

The previous prime is 415315231. The next prime is 415315249. The reversal of 415315243 is 342513514.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 415315243 - 25 = 415315211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (415315249) 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 7 ways as a sum of consecutive naturals, for example, 1561203 + ... + 1561468.

It is an arithmetic number, because the mean of its divisors is an integer number (62453440).

Almost surely, 2415315243 is an apocalyptic number.

415315243 is a deficient number, since it is larger than the sum of its proper divisors (84312277).

415315243 is a wasteful number, since it uses less digits than its factorization.

415315243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122697.

The product of its digits is 7200, while the sum is 28.

The square root of 415315243 is about 20379.2846537851. The cubic root of 415315243 is about 746.0924129683.

Adding to 415315243 its reverse (342513514), we get a palindrome (757828757).

The spelling of 415315243 in words is "four hundred fifteen million, three hundred fifteen thousand, two hundred forty-three".

Divisors: 1 7 19 133 3122671 21858697 59330749 415315243