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1303412417 = 2563350849
BaseRepresentation
bin100110110110000…
…0111111011000001
310100211121012200222
41031230013323001
510132133144132
6333200352425
744204552126
oct11554077301
93324535628
101303412417
1160981904a
12304615715
1317a061268
14c516c74d
1579666412
hex4db07ec1

1303412417 has 4 divisors (see below), whose sum is σ = 1303488900. Its totient is φ = 1303335936.

The previous prime is 1303412381. The next prime is 1303412443. The reversal of 1303412417 is 7142143031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7142143031 = 50527141353.

It can be written as a sum of positive squares in 2 ways, for example, as 668170801 + 635241616 = 25849^2 + 25204^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303412417 - 210 = 1303411393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303412447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209 + ... + 51057.

It is an arithmetic number, because the mean of its divisors is an integer number (325872225).

Almost surely, 21303412417 is an apocalyptic number.

It is an amenable number.

1303412417 is a deficient number, since it is larger than the sum of its proper divisors (76483).

1303412417 is an equidigital number, since it uses as much as digits as its factorization.

1303412417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76482.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1303412417 is about 36102.8034507017. The cubic root of 1303412417 is about 1092.3469942660.

Adding to 1303412417 its reverse (7142143031), we get a palindrome (8445555448).

The spelling of 1303412417 in words is "one billion, three hundred three million, four hundred twelve thousand, four hundred seventeen".

Divisors: 1 25633 50849 1303412417