Search a number
-
+
163135469 = 729803623
BaseRepresentation
bin10011011100100…
…11111111101101
3102100222010210102
421232103333231
5313230313334
624104320445
74020425420
oct1156237755
9370863712
10163135469
11840a4102
1246773125
1327a4a983
14179479b7
15e4c667e
hex9b93fed

163135469 has 8 divisors (see below), whose sum is σ = 192869760. Its totient is φ = 135008496.

The previous prime is 163135459. The next prime is 163135471. The reversal of 163135469 is 964531361.

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

It is a de Polignac number, because none of the positive numbers 2k-163135469 is a prime.

It is a super-2 number, since 2×1631354692 = 53226362491699922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163135439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401609 + ... + 402014.

It is an arithmetic number, because the mean of its divisors is an integer number (24108720).

Almost surely, 2163135469 is an apocalyptic number.

It is an amenable number.

163135469 is a deficient number, since it is larger than the sum of its proper divisors (29734291).

163135469 is an equidigital number, since it uses as much as digits as its factorization.

163135469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803659.

The product of its digits is 58320, while the sum is 38.

The square root of 163135469 is about 12772.4496084346. The cubic root of 163135469 is about 546.4068458867.

The spelling of 163135469 in words is "one hundred sixty-three million, one hundred thirty-five thousand, four hundred sixty-nine".

Divisors: 1 7 29 203 803623 5625361 23305067 163135469