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131096561995 = 577351309809
BaseRepresentation
bin111101000010111110…
…1101100100101001011
3110112101100022100220001
41322011331230211023
54121441204440440
6140120330143431
712320460251050
oct1720575544513
9415340270801
10131096561995
1150663656413
12214a7b81b77
13c493120699
1464b8d91027
15362426ab9a
hex1e85f6c94b

131096561995 has 16 divisors (see below), whose sum is σ = 182252445120. Its totient is φ = 88663348224.

The previous prime is 131096561977. The next prime is 131096562013. The reversal of 131096561995 is 599165690131.

It is an interprime number because it is at equal distance from previous prime (131096561977) and next prime (131096562013).

It is a cyclic number.

It is not a de Polignac number, because 131096561995 - 215 = 131096529227 is a prime.

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, 25652350 + ... + 25657459.

It is an arithmetic number, because the mean of its divisors is an integer number (11390777820).

Almost surely, 2131096561995 is an apocalyptic number.

131096561995 is a deficient number, since it is larger than the sum of its proper divisors (51155883125).

131096561995 is an equidigital number, since it uses as much as digits as its factorization.

131096561995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51309894.

The product of its (nonzero) digits is 1968300, while the sum is 55.

The spelling of 131096561995 in words is "one hundred thirty-one billion, ninety-six million, five hundred sixty-one thousand, nine hundred ninety-five".

Divisors: 1 5 7 35 73 365 511 2555 51309809 256549045 359168663 1795843315 3745616057 18728080285 26219312399 131096561995