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68454224 = 247160259
BaseRepresentation
bin1000001010010…
…00011101010000
311202210211112122
410011020131100
5120011013344
610443113412
71460564666
oct405103520
9152724478
1068454224
1135705743
121ab12868
131124a077
14913cc36
156022aee
hex4148750

68454224 has 20 divisors (see below), whose sum is σ = 134500320. Its totient is φ = 33744480.

The previous prime is 68454203. The next prime is 68454229. The reversal of 68454224 is 42245486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68454229) 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, 28994 + ... + 31265.

It is an arithmetic number, because the mean of its divisors is an integer number (6725016).

Almost surely, 268454224 is an apocalyptic number.

It is an amenable number.

68454224 is a deficient number, since it is larger than the sum of its proper divisors (66046096).

68454224 is a wasteful number, since it uses less digits than its factorization.

68454224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60338 (or 60332 counting only the distinct ones).

The product of its digits is 61440, while the sum is 35.

The square root of 68454224 is about 8273.7067871662. The cubic root of 68454224 is about 409.0723106307.

The spelling of 68454224 in words is "sixty-eight million, four hundred fifty-four thousand, two hundred twenty-four".

Divisors: 1 2 4 8 16 71 142 284 568 1136 60259 120518 241036 482072 964144 4278389 8556778 17113556 34227112 68454224