Search a number
-
+
131213132302 = 2749119088323
BaseRepresentation
bin111101000110011101…
…0011000001000001110
3110112200110122202021211
41322030322120020032
54122211030213202
6140140052445034
712323404136140
oct1721472301016
9415613582254
10131213132302
115071343540a
122151b01977a
13c4b13164b5
1464ca656c90
15362e5e51d7
hex1e8ce9820e

131213132302 has 16 divisors (see below), whose sum is σ = 225394929792. Its totient is φ = 56119666680.

The previous prime is 131213132263. The next prime is 131213132317. The reversal of 131213132302 is 203231312131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9537288 + ... + 9551035.

It is an arithmetic number, because the mean of its divisors is an integer number (14087183112).

Almost surely, 2131213132302 is an apocalyptic number.

131213132302 is a deficient number, since it is larger than the sum of its proper divisors (94181797490).

131213132302 is a wasteful number, since it uses less digits than its factorization.

131213132302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19088823.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131213132302 its reverse (203231312131), we get a palindrome (334444444433).

The spelling of 131213132302 in words is "one hundred thirty-one billion, two hundred thirteen million, one hundred thirty-two thousand, three hundred two".

Divisors: 1 2 7 14 491 982 3437 6874 19088323 38176646 133618261 267236522 9372366593 18744733186 65606566151 131213132302