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13030031242045 = 5173787190710037
BaseRepresentation
bin1011110110011100101001…
…1000100011001100111101
31201010122210021120200200101
42331213022120203030331
53201441000444221140
643413525210201101
72513250215061046
oct275471230431475
951118707520611
1013030031242045
114174006a423a4
121565383123191
1373695a66b91c
1433092a6838cd
15178e1add299a
hexbd9ca62333d

13030031242045 has 32 divisors (see below), whose sum is σ = 15756228770688. Its totient is φ = 10344143417088.

The previous prime is 13030031241959. The next prime is 13030031242049. The reversal of 13030031242045 is 54024213003031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13030031242045 - 223 = 13030022853437 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 (13030031242049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1298194767 + ... + 1298204803.

It is an arithmetic number, because the mean of its divisors is an integer number (492382149084).

Almost surely, 213030031242045 is an apocalyptic number.

It is an amenable number.

13030031242045 is a deficient number, since it is larger than the sum of its proper divisors (2726197528643).

13030031242045 is a wasteful number, since it uses less digits than its factorization.

13030031242045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12909.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 13030031242045 its reverse (54024213003031), we get a palindrome (67054244245076).

The spelling of 13030031242045 in words is "thirteen trillion, thirty billion, thirty-one million, two hundred forty-two thousand, forty-five".

Divisors: 1 5 173 787 865 1907 3935 9535 10037 50185 136151 329911 680755 1500809 1649555 1736401 7504045 7899119 8682005 19140559 39495595 95702795 259639957 1298199785 1366547587 3311316707 6832737935 15063619933 16556583535 75318099665 2606006248409 13030031242045