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168052730 = 2547357559
BaseRepresentation
bin10100000010001…
…00011111111010
3102201012222000012
422001010133322
5321010141410
624401541522
74110265436
oct1201043772
9381188005
10168052730
118695255a
12483448a2
1328a7cbb1
14184679c6
15eb48605
hexa0447fa

168052730 has 16 divisors (see below), whose sum is σ = 308931840. Its totient is φ = 65790672.

The previous prime is 168052699. The next prime is 168052733. The reversal of 168052730 is 37250861.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (168052733) 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 7 ways as a sum of consecutive naturals, for example, 178310 + ... + 179249.

It is an arithmetic number, because the mean of its divisors is an integer number (19308240).

Almost surely, 2168052730 is an apocalyptic number.

168052730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168052730 is a deficient number, since it is larger than the sum of its proper divisors (140879110).

168052730 is a wasteful number, since it uses less digits than its factorization.

168052730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357613.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 168052730 is about 12963.5153411411. The cubic root of 168052730 is about 551.8425586310.

The spelling of 168052730 in words is "one hundred sixty-eight million, fifty-two thousand, seven hundred thirty".

Divisors: 1 2 5 10 47 94 235 470 357559 715118 1787795 3575590 16805273 33610546 84026365 168052730