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163144301 = 569328657
BaseRepresentation
bin10011011100101…
…10001001101101
3102100222120220112
421232112021231
5313231104201
624104425405
74020463235
oct1156261155
9370876815
10163144301
11840aa801
1246778265
1327a519b8
141794acc5
15e4c90bb
hex9b9626d

163144301 has 4 divisors (see below), whose sum is σ = 163178652. Its totient is φ = 163109952.

The previous prime is 163144283. The next prime is 163144307. The reversal of 163144301 is 103441361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 103441361 = 229451709.

It can be written as a sum of positive squares in 2 ways, for example, as 26020201 + 137124100 = 5101^2 + 11710^2 .

It is a cyclic number.

It is not a de Polignac number, because 163144301 - 26 = 163144237 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 (163144307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8636 + ... + 20021.

It is an arithmetic number, because the mean of its divisors is an integer number (40794663).

Almost surely, 2163144301 is an apocalyptic number.

It is an amenable number.

163144301 is a deficient number, since it is larger than the sum of its proper divisors (34351).

163144301 is an equidigital number, since it uses as much as digits as its factorization.

163144301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34350.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 163144301 is about 12772.7953479260. The cubic root of 163144301 is about 546.4167063587.

Adding to 163144301 its reverse (103441361), we get a palindrome (266585662).

The spelling of 163144301 in words is "one hundred sixty-three million, one hundred forty-four thousand, three hundred one".

Divisors: 1 5693 28657 163144301