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131122220996 = 221371914512417
BaseRepresentation
bin111101000011101111…
…1100100111111000100
3110112110010120222102102
41322013133210333010
54122014242032441
6140123044131232
712321221326454
oct1720737447704
9415403528372
10131122220996
11506770913a8
12214b4696b18
13c498535820
1464bc54dd64
15362663869b
hex1e877e4fc4

131122220996 has 48 divisors (see below), whose sum is σ = 247731644160. Its totient is φ = 60367142400.

The previous prime is 131122220989. The next prime is 131122221017. The reversal of 131122220996 is 699022221131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54248780 + ... + 54251196.

It is an arithmetic number, because the mean of its divisors is an integer number (5161075920).

Almost surely, 2131122220996 is an apocalyptic number.

It is an amenable number.

131122220996 is a deficient number, since it is larger than the sum of its proper divisors (116609423164).

131122220996 is a wasteful number, since it uses less digits than its factorization.

131122220996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4604 (or 4602 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 131122220996 in words is "one hundred thirty-one billion, one hundred twenty-two million, two hundred twenty thousand, nine hundred ninety-six".

Divisors: 1 2 4 13 26 52 719 1438 1451 2417 2876 2902 4834 5804 9347 9668 18694 18863 31421 37388 37726 62842 75452 125684 1043269 1737823 2086538 3475646 3507067 4173076 6951292 7014134 13562497 14028268 22591699 27124994 45183398 45591871 54249988 90366796 91183742 182367484 2521581173 5043162346 10086324692 32780555249 65561110498 131122220996