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168148143 = 342075903
BaseRepresentation
bin10100000010110…
…11110010101111
3102201101210220000
422001123302233
5321021220033
624403555343
74111143552
oct1201336257
9381353800
10168148143
1186a08209
124838bb53
1328ab4457
1418490699
15eb66a13
hexa05bcaf

168148143 has 10 divisors (see below), whose sum is σ = 251184384. Its totient is φ = 112098708.

The previous prime is 168148117. The next prime is 168148217. The reversal of 168148143 is 341841861.

It is a happy number.

It is not a de Polignac number, because 168148143 - 25 = 168148111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168148098 and 168148107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168148543) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1037871 + ... + 1038032.

Almost surely, 2168148143 is an apocalyptic number.

168148143 is a deficient number, since it is larger than the sum of its proper divisors (83036241).

168148143 is an equidigital number, since it uses as much as digits as its factorization.

168148143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075915 (or 2075906 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 168148143 is about 12967.1948778446. The cubic root of 168148143 is about 551.9469762395.

The spelling of 168148143 in words is "one hundred sixty-eight million, one hundred forty-eight thousand, one hundred forty-three".

Divisors: 1 3 9 27 81 2075903 6227709 18683127 56049381 168148143