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131228688835 = 5591223363731
BaseRepresentation
bin111101000110111010…
…1101110000111000011
3110112201112221002211201
41322031311232013003
54122224021020320
6140141410122031
712323653310356
oct1721565560703
9415645832751
10131228688835
11507211a0252
1221524280317
13c4b460224a
1464cc74629d
153630b6970a
hex1e8dd6e1c3

131228688835 has 16 divisors (see below), whose sum is σ = 160274868480. Its totient is φ = 103118909920.

The previous prime is 131228688827. The next prime is 131228688859. The reversal of 131228688835 is 538886822131.

It is not a de Polignac number, because 131228688835 - 23 = 131228688827 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, 178920 + ... + 542650.

It is an arithmetic number, because the mean of its divisors is an integer number (10017179280).

Almost surely, 2131228688835 is an apocalyptic number.

131228688835 is a deficient number, since it is larger than the sum of its proper divisors (29046179645).

131228688835 is a wasteful number, since it uses less digits than its factorization.

131228688835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365018.

The product of its digits is 4423680, while the sum is 55.

The spelling of 131228688835 in words is "one hundred thirty-one billion, two hundred twenty-eight million, six hundred eighty-eight thousand, eight hundred thirty-five".

Divisors: 1 5 59 295 1223 6115 72157 360785 363731 1818655 21460129 107300645 444843013 2224215065 26245737767 131228688835