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131454476380 = 22531212023349
BaseRepresentation
bin111101001101101001…
…1000010000001011100
3110120022021210022010101
41322123103002001130
54123204321221010
6140220033350444
712332364420163
oct1723323020134
9416267708111
10131454476380
1150827696827
1221587a08424
13c51c318046
14651071c3da
1536458b973a
hex1e9b4c205c

131454476380 has 24 divisors (see below), whose sum is σ = 284959382400. Its totient is φ = 50885603520.

The previous prime is 131454476357. The next prime is 131454476383. The reversal of 131454476380 is 83674454131.

It is a self number, because there is not a number n which added to its sum of digits gives 131454476380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131454476383) by changing a digit.

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, 106011055 + ... + 106012294.

It is an arithmetic number, because the mean of its divisors is an integer number (11873307600).

Almost surely, 2131454476380 is an apocalyptic number.

131454476380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131454476380 is an abundant number, since it is smaller than the sum of its proper divisors (153504906020).

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

131454476380 is a wasteful number, since it uses less digits than its factorization.

131454476380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212023389 (or 212023387 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 131454476380 in words is "one hundred thirty-one billion, four hundred fifty-four million, four hundred seventy-six thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 212023349 424046698 848093396 1060116745 2120233490 4240466980 6572723819 13145447638 26290895276 32863619095 65727238190 131454476380