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302131401413 = 477469632777
BaseRepresentation
bin1000110010110000110…
…11110101001011000101
31001212212001112102211012
410121120123311023011
514422231114321123
6350444112252005
730554045352542
oct4313033651305
91055761472735
10302131401413
11107151332776
124a67b241005
132264c59258a
14108a2243bc9
157cd487a378
hex46586f52c5

302131401413 has 4 divisors (see below), whose sum is σ = 302132511660. Its totient is φ = 302130291168.

The previous prime is 302131401379. The next prime is 302131401463. The reversal of 302131401413 is 314104131203.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 220691369284 + 81440032129 = 469778^2 + 285377^2 .

It is a cyclic number.

It is not a de Polignac number, because 302131401413 - 28 = 302131401157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302131401463) 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, 161081 + ... + 793857.

It is an arithmetic number, because the mean of its divisors is an integer number (75533127915).

Almost surely, 2302131401413 is an apocalyptic number.

It is an amenable number.

302131401413 is a deficient number, since it is larger than the sum of its proper divisors (1110247).

302131401413 is an equidigital number, since it uses as much as digits as its factorization.

302131401413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110246.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 302131401413 its reverse (314104131203), we get a palindrome (616235532616).

The spelling of 302131401413 in words is "three hundred two billion, one hundred thirty-one million, four hundred one thousand, four hundred thirteen".

Divisors: 1 477469 632777 302131401413