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13142231203405 = 529031060785361
BaseRepresentation
bin1011111100111110101000…
…0001011011111001001101
31201112101101200121021200211
42333033222001123321031
53210310242142002110
643541242504522421
72524331512030033
oct277175201337115
951471350537624
1013142231203405
114207652995a97
121583076780411
137443cb8856c5
14336131ad4553
1517bcd61da98a
hexbf3ea05be4d

13142231203405 has 16 divisors (see below), whose sum is σ = 15777782152704. Its totient is φ = 10509049281280.

The previous prime is 13142231203399. The next prime is 13142231203459. The reversal of 13142231203405 is 50430213224131.

It is not a de Polignac number, because 13142231203405 - 23 = 13142231203397 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 153917925 + ... + 154003285.

It is an arithmetic number, because the mean of its divisors is an integer number (986111384544).

Almost surely, 213142231203405 is an apocalyptic number.

It is an amenable number.

13142231203405 is a deficient number, since it is larger than the sum of its proper divisors (2635550949299).

13142231203405 is a wasteful number, since it uses less digits than its factorization.

13142231203405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98876.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 13142231203405 its reverse (50430213224131), we get a palindrome (63572444427536).

The spelling of 13142231203405 in words is "thirteen trillion, one hundred forty-two billion, two hundred thirty-one million, two hundred three thousand, four hundred five".

Divisors: 1 5 2903 10607 14515 53035 85361 426805 30792121 153960605 247802983 905424127 1239014915 4527120635 2628446240681 13142231203405