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131320213232 = 2413859973421
BaseRepresentation
bin111101001001101001…
…0110110111011110000
3110112221221011000201012
41322103102312323300
54122420433310412
6140154435530052
712326144252345
oct1722322667360
9415857130635
10131320213232
115076892294a
122154aa59928
13c4ca568cb0
1464da96c7cc
153638be7c22
hex1e934b6ef0

131320213232 has 40 divisors (see below), whose sum is σ = 274040272800. Its totient is φ = 60601455360.

The previous prime is 131320213223. The next prime is 131320213273. The reversal of 131320213232 is 232312023131.

It is a junction number, because it is equal to n+sod(n) for n = 131320213198 and 131320213207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1751882 + ... + 1825302.

It is an arithmetic number, because the mean of its divisors is an integer number (6851006820).

Almost surely, 2131320213232 is an apocalyptic number.

It is an amenable number.

131320213232 is an abundant number, since it is smaller than the sum of its proper divisors (142720059568).

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

131320213232 is a wasteful number, since it uses less digits than its factorization.

131320213232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82041 (or 82035 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 131320213232 its reverse (232312023131), we get a palindrome (363632236363).

The spelling of 131320213232 in words is "one hundred thirty-one billion, three hundred twenty million, two hundred thirteen thousand, two hundred thirty-two".

Divisors: 1 2 4 8 13 16 26 52 104 208 8599 17198 34396 68792 73421 111787 137584 146842 223574 293684 447148 587368 894296 954473 1174736 1788592 1908946 3817892 7635784 15271568 631347179 1262694358 2525388716 5050777432 8207513327 10101554864 16415026654 32830053308 65660106616 131320213232