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20165012029 = 312221292879
BaseRepresentation
bin10010110001111011…
…011010101000111101
31221001100000202012101
4102301323122220331
5312244220341104
613132542105101
71312464526351
oct226173325075
957040022171
1020165012029
118608694aa8
123aa927b191
131b949317a6
14d9419b461
157d04b35a4
hex4b1edaa3d

20165012029 has 8 divisors (see below), whose sum is σ = 20824939520. Its totient is φ = 19505674800.

The previous prime is 20165012027. The next prime is 20165012057. The reversal of 20165012029 is 92021056102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20165012029 - 21 = 20165012027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20165011988 and 20165012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20165012027) 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, 77589 + ... + 215290.

It is an arithmetic number, because the mean of its divisors is an integer number (2603117440).

Almost surely, 220165012029 is an apocalyptic number.

It is an amenable number.

20165012029 is a deficient number, since it is larger than the sum of its proper divisors (659927491).

20165012029 is a wasteful number, since it uses less digits than its factorization.

20165012029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295131.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 20165012029 in words is "twenty billion, one hundred sixty-five million, twelve thousand, twenty-nine".

Divisors: 1 31 2221 68851 292879 9079249 650484259 20165012029