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168013411 = 374540903
BaseRepresentation
bin10100000001110…
…10111001100011
3102201010222001221
422000322321203
5321002412121
624401035511
74110043006
oct1200727143
9381128057
10168013411
1186925a65
1248325b97
1328a68027
141845753d
15eb3bb41
hexa03ae63

168013411 has 4 divisors (see below), whose sum is σ = 172554352. Its totient is φ = 163472472.

The previous prime is 168013403. The next prime is 168013423. The reversal of 168013411 is 114310861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114310861 = 716330123.

It is a cyclic number.

It is not a de Polignac number, because 168013411 - 23 = 168013403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168013441) 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, 2270415 + ... + 2270488.

It is an arithmetic number, because the mean of its divisors is an integer number (43138588).

Almost surely, 2168013411 is an apocalyptic number.

168013411 is a deficient number, since it is larger than the sum of its proper divisors (4540941).

168013411 is an equidigital number, since it uses as much as digits as its factorization.

168013411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540940.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 168013411 is about 12961.9987270482. The cubic root of 168013411 is about 551.7995173983.

The spelling of 168013411 in words is "one hundred sixty-eight million, thirteen thousand, four hundred eleven".

Divisors: 1 37 4540903 168013411