Search a number
-
+
13422031297 = 41327366617
BaseRepresentation
bin11001000000000001…
…11111000111000001
31021122101220211120021
430200000333013001
5204442020000142
610055504413441
7653416245403
oct144000770701
937571824507
1013422031297
115768428854
122727017281
13135b95816c
14914826b73
15538518267
hex32003f1c1

13422031297 has 4 divisors (see below), whose sum is σ = 13749397956. Its totient is φ = 13094664640.

The previous prime is 13422031291. The next prime is 13422031351. The reversal of 13422031297 is 79213022431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79213022431 = 86239918529.

It can be written as a sum of positive squares in 2 ways, for example, as 2639493376 + 10782537921 = 51376^2 + 103839^2 .

It is a cyclic number.

It is not a de Polignac number, because 13422031297 - 227 = 13287813569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13422031291) 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 3 ways as a sum of consecutive naturals, for example, 163683268 + ... + 163683349.

It is an arithmetic number, because the mean of its divisors is an integer number (3437349489).

Almost surely, 213422031297 is an apocalyptic number.

It is an amenable number.

13422031297 is a deficient number, since it is larger than the sum of its proper divisors (327366659).

13422031297 is an equidigital number, since it uses as much as digits as its factorization.

13422031297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327366658.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 13422031297 in words is "thirteen billion, four hundred twenty-two million, thirty-one thousand, two hundred ninety-seven".

Divisors: 1 41 327366617 13422031297