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68430444 = 22346712211
BaseRepresentation
bin1000001010000…
…10101001101100
311202202121220220
410011002221230
5120004233234
610442411340
71460435445
oct405025154
9152677826
1068430444
1135699895
121ab00b50
131123c2b4
1491342cc
15601aa49
hex4142a6c

68430444 has 24 divisors (see below), whose sum is σ = 160026048. Its totient is φ = 22759440.

The previous prime is 68430433. The next prime is 68430503. The reversal of 68430444 is 44403486.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502 + ... + 11709.

It is an arithmetic number, because the mean of its divisors is an integer number (6667752).

Almost surely, 268430444 is an apocalyptic number.

It is an amenable number.

68430444 is an abundant number, since it is smaller than the sum of its proper divisors (91595604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68430444 is a wasteful number, since it uses less digits than its factorization.

68430444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12685 (or 12683 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 68430444 is about 8272.2695797465. The cubic root of 68430444 is about 409.0249365578.

The spelling of 68430444 in words is "sixty-eight million, four hundred thirty thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 467 934 1401 1868 2802 5604 12211 24422 36633 48844 73266 146532 5702537 11405074 17107611 22810148 34215222 68430444