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168271417 = 1061158597
BaseRepresentation
bin10100000011110…
…01111000111001
3102201122001222201
422001321320321
5321034141132
624410350201
74112166136
oct1201717071
9381561881
10168271417
1186a91896
124842b361
1328b285b2
14184c358d
15eb8d2e7
hexa079e39

168271417 has 4 divisors (see below), whose sum is σ = 168431076. Its totient is φ = 168111760.

The previous prime is 168271399. The next prime is 168271447. The reversal of 168271417 is 714172861.

168271417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 714172861 = 2857249973.

It can be written as a sum of positive squares in 2 ways, for example, as 38675961 + 129595456 = 6219^2 + 11384^2 .

It is a cyclic number.

It is not a de Polignac number, because 168271417 - 227 = 34053689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168271447) 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, 78238 + ... + 80359.

It is an arithmetic number, because the mean of its divisors is an integer number (42107769).

Almost surely, 2168271417 is an apocalyptic number.

It is an amenable number.

168271417 is a deficient number, since it is larger than the sum of its proper divisors (159659).

168271417 is a wasteful number, since it uses less digits than its factorization.

168271417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159658.

The product of its digits is 18816, while the sum is 37.

The square root of 168271417 is about 12971.9473094829. The cubic root of 168271417 is about 552.0818257629.

The spelling of 168271417 in words is "one hundred sixty-eight million, two hundred seventy-one thousand, four hundred seventeen".

Divisors: 1 1061 158597 168271417