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13420415201 = 107811244821
BaseRepresentation
bin11000111111110101…
…10100100011100001
31021122021212201200212
430133322310203201
5204441111241301
610055410023505
7653366434634
oct143772644341
937567781625
1013420415201
115767524636
122726577b95
13135b5106ab
14914525c1b
155382e94bb
hex31feb48e1

13420415201 has 4 divisors (see below), whose sum is σ = 13421670804. Its totient is φ = 13419159600.

The previous prime is 13420415171. The next prime is 13420415207. The reversal of 13420415201 is 10251402431.

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 7911213025 + 5509202176 = 88945^2 + 74224^2 .

It is a cyclic number.

It is not a de Polignac number, because 13420415201 - 26 = 13420415137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13420415207) 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, 611630 + ... + 633191.

It is an arithmetic number, because the mean of its divisors is an integer number (3355417701).

Almost surely, 213420415201 is an apocalyptic number.

It is an amenable number.

13420415201 is a deficient number, since it is larger than the sum of its proper divisors (1255603).

13420415201 is a wasteful number, since it uses less digits than its factorization.

13420415201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255602.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 13420415201 its reverse (10251402431), we get a palindrome (23671817632).

The spelling of 13420415201 in words is "thirteen billion, four hundred twenty million, four hundred fifteen thousand, two hundred one".

Divisors: 1 10781 1244821 13420415201