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168011744 = 255250367
BaseRepresentation
bin10100000001110…
…10011111100000
3102201010212210012
422000322133200
5321002333434
624401024052
74110035105
oct1200723740
9381125705
10168011744
118692478a
1248325028
1328a67344
1418456aac
15eb3b3ce
hexa03a7e0

168011744 has 12 divisors (see below), whose sum is σ = 330773184. Its totient is φ = 84005856.

The previous prime is 168011743. The next prime is 168011747. The reversal of 168011744 is 447110861.

168011744 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1680117442 = 56455892243843072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 5250367 = 168011744 / (1 + 6 + 8 + 0 + 1 + 1 + 7 + 4 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 168011744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168011743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2625152 + ... + 2625215.

It is an arithmetic number, because the mean of its divisors is an integer number (27564432).

Almost surely, 2168011744 is an apocalyptic number.

It is an amenable number.

168011744 is a deficient number, since it is larger than the sum of its proper divisors (162761440).

168011744 is an equidigital number, since it uses as much as digits as its factorization.

168011744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250377 (or 5250369 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 168011744 is about 12961.9344235342. The cubic root of 168011744 is about 551.7976924391.

The spelling of 168011744 in words is "one hundred sixty-eight million, eleven thousand, seven hundred forty-four".

Divisors: 1 2 4 8 16 32 5250367 10500734 21001468 42002936 84005872 168011744