Search a number
-
+
163053053 = 199781649
BaseRepresentation
bin10011011011111…
…11110111111101
3102100210221201222
421231333313331
5313220144203
624102443125
74016633222
oct1155776775
9370727658
10163053053
1184048199
12467334a5
1327a1c2c7
1417925949
15e4ac038
hex9b7fdfd

163053053 has 4 divisors (see below), whose sum is σ = 163136700. Its totient is φ = 162969408.

The previous prime is 163053013. The next prime is 163053083. The reversal of 163053053 is 350350361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61889689 + 101163364 = 7867^2 + 10058^2 .

It is a cyclic number.

It is not a de Polignac number, because 163053053 - 214 = 163036669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163053013) 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, 38828 + ... + 42821.

It is an arithmetic number, because the mean of its divisors is an integer number (40784175).

Almost surely, 2163053053 is an apocalyptic number.

It is an amenable number.

163053053 is a deficient number, since it is larger than the sum of its proper divisors (83647).

163053053 is an equidigital number, since it uses as much as digits as its factorization.

163053053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83646.

The product of its (nonzero) digits is 4050, while the sum is 26.

The square root of 163053053 is about 12769.2228816009. Note that the first 3 decimals coincide. The cubic root of 163053053 is about 546.3148155176.

The spelling of 163053053 in words is "one hundred sixty-three million, fifty-three thousand, fifty-three".

Divisors: 1 1997 81649 163053053