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163115049 = 354371683
BaseRepresentation
bin10011011100011…
…11000000101001
3102100221002210010
421232033000221
5313224140144
624104042133
74020312036
oct1156170051
9370832703
10163115049
118408a829
1246763349
1327a415a6
141794038d
15e4c05b9
hex9b8f029

163115049 has 4 divisors (see below), whose sum is σ = 217486736. Its totient is φ = 108743364.

The previous prime is 163115033. The next prime is 163115063. The reversal of 163115049 is 940511361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 163115049 - 24 = 163115033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163115089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27185839 + ... + 27185844.

It is an arithmetic number, because the mean of its divisors is an integer number (54371684).

Almost surely, 2163115049 is an apocalyptic number.

It is an amenable number.

163115049 is a deficient number, since it is larger than the sum of its proper divisors (54371687).

163115049 is an equidigital number, since it uses as much as digits as its factorization.

163115049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54371686.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 163115049 is about 12771.6502066100. The cubic root of 163115049 is about 546.3840466482.

The spelling of 163115049 in words is "one hundred sixty-three million, one hundred fifteen thousand, forty-nine".

Divisors: 1 3 54371683 163115049