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131023513132 = 22231744381647
BaseRepresentation
bin111101000000110011…
…1000010011000101100
3110112012020212002200121
41322001213002120230
54121314004410012
6140105200334324
712315612325441
oct1720147023054
9415166762617
10131023513132
11506263a2756
12214876143a4
13c480c551c5
1464ad3b79c8
15361cb3ba07
hex1e819c262c

131023513132 has 24 divisors (see below), whose sum is σ = 239276975616. Its totient is φ = 62659059408.

The previous prime is 131023513123. The next prime is 131023513151. The reversal of 131023513132 is 231315320131.

131023513132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 131023513097 and 131023513106.

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, 1563933 + ... + 1645579.

It is an arithmetic number, because the mean of its divisors is an integer number (9969873984).

Almost surely, 2131023513132 is an apocalyptic number.

It is an amenable number.

131023513132 is a deficient number, since it is larger than the sum of its proper divisors (108253462484).

131023513132 is a wasteful number, since it uses less digits than its factorization.

131023513132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99117 (or 99115 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 131023513132 its reverse (231315320131), we get a palindrome (362338833263).

The spelling of 131023513132 in words is "one hundred thirty-one billion, twenty-three million, five hundred thirteen thousand, one hundred thirty-two".

Divisors: 1 2 4 23 46 92 17443 34886 69772 81647 163294 326588 401189 802378 1604756 1877881 3755762 7511524 1424168621 2848337242 5696674484 32755878283 65511756566 131023513132