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1312046105161 = 11259183785699
BaseRepresentation
bin10011000101111100000…
…010101100001001001001
311122102121202012222222011
4103011330002230021021
5132444032300331121
62442425021255521
7163535503611451
oct23057402541111
94572552188864
101312046105161
11466487904300
121923497045a1
139695798260c
1447709368d61
15241e17517e1
hex1317c0ac249

1312046105161 has 12 divisors (see below), whose sum is σ = 1466609886000. Its totient is φ = 1172552753240.

The previous prime is 1312046105093. The next prime is 1312046105189. The reversal of 1312046105161 is 1615016402131.

It is not a de Polignac number, because 1312046105161 - 225 = 1312012550729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312046105261) 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 11 ways as a sum of consecutive naturals, for example, 91885711 + ... + 91899988.

It is an arithmetic number, because the mean of its divisors is an integer number (122217490500).

Almost surely, 21312046105161 is an apocalyptic number.

1312046105161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1312046105161 is a deficient number, since it is larger than the sum of its proper divisors (154563780839).

1312046105161 is a wasteful number, since it uses less digits than its factorization.

1312046105161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183785780 (or 183785769 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 1312046105161 in words is "one trillion, three hundred twelve billion, forty-six million, one hundred five thousand, one hundred sixty-one".

Divisors: 1 11 59 121 649 7139 183785699 2021642689 10843356241 22238069579 119276918651 1312046105161