Search a number
-
+
13142320242 = 237130850517
BaseRepresentation
bin11000011110101011…
…11110010001110010
31020220220121001010120
430033111332101302
5203403413221432
610012033311110
7643451610312
oct141725762162
936826531116
1013142320242
115634551797
122669405496
131315a1216c
148c9615442
1551dbb5c2c
hex30f57e472

13142320242 has 16 divisors (see below), whose sum is σ = 26654847552. Its totient is φ = 4319072240.

The previous prime is 13142320241. The next prime is 13142320259. The reversal of 13142320242 is 24202324131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13142320241) 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 7 ways as a sum of consecutive naturals, for example, 15424833 + ... + 15425684.

It is an arithmetic number, because the mean of its divisors is an integer number (1665927972).

Almost surely, 213142320242 is an apocalyptic number.

13142320242 is an abundant number, since it is smaller than the sum of its proper divisors (13512527310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13142320242 is a wasteful number, since it uses less digits than its factorization.

13142320242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30850593.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 13142320242 its reverse (24202324131), we get a palindrome (37344644373).

The spelling of 13142320242 in words is "thirteen billion, one hundred forty-two million, three hundred twenty thousand, two hundred forty-two".

Divisors: 1 2 3 6 71 142 213 426 30850517 61701034 92551551 185103102 2190386707 4380773414 6571160121 13142320242