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12813130438000 = 24536406565219
BaseRepresentation
bin1011101001110100101000…
…0101101001010101110000
31200100220221002110012112121
42322131022011221111300
53134412242343004000
643130134301204024
72461501213465624
oct272351205512560
950326832405477
1012813130438000
1140a0022104a52
12152b32b560614
1371c371a7aba9
14324231b45184
15173473d2cb1a
hexba74a169570

12813130438000 has 40 divisors (see below), whose sum is σ = 30982149403920. Its totient is φ = 5125252174400.

The previous prime is 12813130437967. The next prime is 12813130438007. The reversal of 12813130438000 is 83403131821.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12813130438007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3203280610 + ... + 3203284609.

It is an arithmetic number, because the mean of its divisors is an integer number (774553735098).

Almost surely, 212813130438000 is an apocalyptic number.

12813130438000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12813130438000 is an abundant number, since it is smaller than the sum of its proper divisors (18169018965920).

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

12813130438000 is an equidigital number, since it uses as much as digits as its factorization.

12813130438000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6406565242 (or 6406565226 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

Adding to 12813130438000 its reverse (83403131821), we get a palindrome (12896533569821).

The spelling of 12813130438000 in words is "twelve trillion, eight hundred thirteen billion, one hundred thirty million, four hundred thirty-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 6406565219 12813130438 25626260876 32032826095 51252521752 64065652190 102505043504 128131304380 160164130475 256262608760 320328260950 512525217520 640656521900 800820652375 1281313043800 1601641304750 2562626087600 3203282609500 6406565219000 12813130438000