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131686404853 = 1741832276303
BaseRepresentation
bin111101010100100011…
…1110001001011110101
3110120220110012111011211
41322221013301023311
54124143204423403
6140255040401421
712341211654403
oct1725107611365
9416813174154
10131686404853
11509365a7053
1221631616271
13c5583a1023
146533452473
15365ae2e06d
hex1ea91f12f5

131686404853 has 16 divisors (see below), whose sum is σ = 144554409216. Its totient is φ = 119460328960.

The previous prime is 131686404821. The next prime is 131686404859. The reversal of 131686404853 is 358404686131.

It is not a de Polignac number, because 131686404853 - 25 = 131686404821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131686404797 and 131686404806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131686404859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1080301 + ... + 1196002.

It is an arithmetic number, because the mean of its divisors is an integer number (9034650576).

Almost surely, 2131686404853 is an apocalyptic number.

It is an amenable number.

131686404853 is a deficient number, since it is larger than the sum of its proper divisors (12868004363).

131686404853 is a wasteful number, since it uses less digits than its factorization.

131686404853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276444.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 131686404853 in words is "one hundred thirty-one billion, six hundred eighty-six million, four hundred four thousand, eight hundred fifty-three".

Divisors: 1 17 41 83 697 1411 3403 57851 2276303 38697151 93328423 188933149 1586583191 3211863533 7746259109 131686404853