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13123170137200 = 245232807925343
BaseRepresentation
bin1011111011110111100111…
…1001001111010001110000
31201110120012021211210110211
42332331321321033101300
53210002223023342300
643524411240033504
72523055250446324
oct276757171172160
951416167753424
1013123170137200
1141aa561470912
12157b437162894
137426818868c6
143352443c1984
1517b56cadc4ba
hexbef79e4f470

13123170137200 has 30 divisors (see below), whose sum is σ = 31528416255584. Its totient is φ = 5249268054720.

The previous prime is 13123170137141. The next prime is 13123170137237. The reversal of 13123170137200 is 273107132131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16403962272 + ... + 16403963071.

Almost surely, 213123170137200 is an apocalyptic number.

13123170137200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123170137200 is an abundant number, since it is smaller than the sum of its proper divisors (18405246118384).

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

13123170137200 is a wasteful number, since it uses less digits than its factorization.

13123170137200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32807925361 (or 32807925350 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

Adding to 13123170137200 its reverse (273107132131), we get a palindrome (13396277269331).

The spelling of 13123170137200 in words is "thirteen trillion, one hundred twenty-three billion, one hundred seventy million, one hundred thirty-seven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 32807925343 65615850686 131231701372 164039626715 262463402744 328079253430 524926805488 656158506860 820198133575 1312317013720 1640396267150 2624634027440 3280792534300 6561585068600 13123170137200