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12825398911 = 1337127209953
BaseRepresentation
bin10111111000111010…
…00000111001111111
31020002211020202210111
423330131000321333
5202231300231121
65520352450451
7632553043363
oct137435007177
936084222714
1012825398911
115491670036
12259b249a27
13129516b350
148994b92a3
15500e632e1
hex2fc740e7f

12825398911 has 16 divisors (see below), whose sum is σ = 14297027584. Its totient is φ = 11428107264.

The previous prime is 12825398903. The next prime is 12825398917. The reversal of 12825398911 is 11989352821.

It is a cyclic number.

It is not a de Polignac number, because 12825398911 - 23 = 12825398903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12825398917) 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, 43890 + ... + 166063.

It is an arithmetic number, because the mean of its divisors is an integer number (893564224).

Almost surely, 212825398911 is an apocalyptic number.

12825398911 is a deficient number, since it is larger than the sum of its proper divisors (1471628673).

12825398911 is a wasteful number, since it uses less digits than its factorization.

12825398911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210130.

The product of its digits is 311040, while the sum is 49.

The spelling of 12825398911 in words is "twelve billion, eight hundred twenty-five million, three hundred ninety-eight thousand, nine hundred eleven".

Divisors: 1 13 37 127 481 1651 4699 61087 209953 2729389 7768261 26664031 100987393 346632403 986569147 12825398911