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27802428901 = 1312716839751
BaseRepresentation
bin11001111001001001…
…110110010111100101
32122202121011201112221
4121321021312113211
5423414410211101
620434450312341
72002653514012
oct317111662745
978677151487
1027802428901
1110877823375
12547ab886b1
132811004180
1414ba640709
15acac3baa1
hex6792765e5

27802428901 has 8 divisors (see below), whose sum is σ = 30176835584. Its totient is φ = 25461702000.

The previous prime is 27802428839. The next prime is 27802428923. The reversal of 27802428901 is 10982420872.

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 27802428901 - 29 = 27802428389 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 (27802428961) 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, 8418225 + ... + 8421526.

It is an arithmetic number, because the mean of its divisors is an integer number (3772104448).

Almost surely, 227802428901 is an apocalyptic number.

It is an amenable number.

27802428901 is a deficient number, since it is larger than the sum of its proper divisors (2374406683).

27802428901 is a wasteful number, since it uses less digits than its factorization.

27802428901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16839891.

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 27802428901 in words is "twenty-seven billion, eight hundred two million, four hundred twenty-eight thousand, nine hundred one".

Divisors: 1 13 127 1651 16839751 218916763 2138648377 27802428901