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163284949 = 1737925343
BaseRepresentation
bin10011011101110…
…00011111010101
3102101020201211201
421232320133111
5313300104244
624111432501
74021620262
oct1156703725
9371221751
10163284949
1184196443
1246825731
1327aa0a19
1417986269
15e505ad4
hex9bb87d5

163284949 has 8 divisors (see below), whose sum is σ = 173352960. Its totient is φ = 153268416.

The previous prime is 163284923. The next prime is 163284991. The reversal of 163284949 is 949482361.

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 163284949 - 29 = 163284437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163284899 and 163284908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163284449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6229 + ... + 19114.

It is an arithmetic number, because the mean of its divisors is an integer number (21669120).

Almost surely, 2163284949 is an apocalyptic number.

It is an amenable number.

163284949 is a deficient number, since it is larger than the sum of its proper divisors (10068011).

163284949 is a wasteful number, since it uses less digits than its factorization.

163284949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25739.

The product of its digits is 373248, while the sum is 46.

The square root of 163284949 is about 12778.2999260465. The cubic root of 163284949 is about 546.5736846533.

The spelling of 163284949 in words is "one hundred sixty-three million, two hundred eighty-four thousand, nine hundred forty-nine".

Divisors: 1 17 379 6443 25343 430831 9604997 163284949