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131611354194 = 23531993720759
BaseRepresentation
bin111101010010010100…
…1011110010001010010
3110120201012222112000210
41322210221132101102
54124020001313234
6140243400024550
712336311023665
oct1724451362122
9416635875023
10131611354194
11508a81a6411
1221610462156
13c545984658
1465274b76dc
153654556be9
hex1ea4a5e452

131611354194 has 32 divisors (see below), whose sum is σ = 268215546240. Its totient is φ = 43038474752.

The previous prime is 131611354187. The next prime is 131611354241. The reversal of 131611354194 is 491453116131.

131611354194 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 6329587 + ... + 6350345.

It is an arithmetic number, because the mean of its divisors is an integer number (8381735820).

Almost surely, 2131611354194 is an apocalyptic number.

131611354194 is an abundant number, since it is smaller than the sum of its proper divisors (136604192046).

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

131611354194 is a wasteful number, since it uses less digits than its factorization.

131611354194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40754.

The product of its digits is 38880, while the sum is 39.

The spelling of 131611354194 in words is "one hundred thirty-one billion, six hundred eleven million, three hundred fifty-four thousand, one hundred ninety-four".

Divisors: 1 2 3 6 53 106 159 318 19937 20759 39874 41518 59811 62277 119622 124554 1056661 1100227 2113322 2200454 3169983 3300681 6339966 6601362 413872183 827744366 1241616549 2483233098 21935225699 43870451398 65805677097 131611354194