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164271263 = 1331407621
BaseRepresentation
bin10011100101010…
…01010010011111
3102110002211210212
421302221102133
5314023140023
624144523035
74033165652
oct1162512237
9373084725
10164271263
11847aa482
124702047b
1328057940
1417b61899
15e64ce78
hex9ca949f

164271263 has 8 divisors (see below), whose sum is σ = 182614656. Its totient is φ = 146743200.

The previous prime is 164271259. The next prime is 164271287. The reversal of 164271263 is 362172461.

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 164271263 - 22 = 164271259 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 (164271463) 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, 203408 + ... + 204213.

It is an arithmetic number, because the mean of its divisors is an integer number (22826832).

Almost surely, 2164271263 is an apocalyptic number.

164271263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

164271263 is a deficient number, since it is larger than the sum of its proper divisors (18343393).

164271263 is a wasteful number, since it uses less digits than its factorization.

164271263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407665.

The product of its digits is 12096, while the sum is 32.

The square root of 164271263 is about 12816.8351397683. The cubic root of 164271263 is about 547.6719925577.

The spelling of 164271263 in words is "one hundred sixty-four million, two hundred seventy-one thousand, two hundred sixty-three".

Divisors: 1 13 31 403 407621 5299073 12636251 164271263