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131105227288 = 2372341164773
BaseRepresentation
bin111101000011001111…
…0110000001000011000
3110112101221121121102211
41322012132300020120
54122000414233123
6140121240004504
712320624021230
oct1720636601030
9415357547384
10131105227288
1150668534812
12214aaa60734
13c494b65889
1464ba1a8cc0
153624dcd40d
hex1e867b0218

131105227288 has 16 divisors (see below), whose sum is σ = 280939772880. Its totient is φ = 56187954528.

The previous prime is 131105227237. The next prime is 131105227301. The reversal of 131105227288 is 882722501131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131105227288.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1170582331 + ... + 1170582442.

It is an arithmetic number, because the mean of its divisors is an integer number (17558735805).

Almost surely, 2131105227288 is an apocalyptic number.

It is an amenable number.

131105227288 is an abundant number, since it is smaller than the sum of its proper divisors (149834545592).

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

131105227288 is a wasteful number, since it uses less digits than its factorization.

131105227288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341164786 (or 2341164782 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 131105227288 in words is "one hundred thirty-one billion, one hundred five million, two hundred twenty-seven thousand, two hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 2341164773 4682329546 9364659092 16388153411 18729318184 32776306822 65552613644 131105227288