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68184470 = 256818447
BaseRepresentation
bin1000001000001…
…10100110010110
311202022010111202
410010012212112
5114423400340
610433232502
71455362354
oct404064626
9152263452
1068184470
1135541002
121aa02732
1311184353
1490ac7d4
155ebcc15
hex4106996

68184470 has 8 divisors (see below), whose sum is σ = 122732064. Its totient is φ = 27273784.

The previous prime is 68184463. The next prime is 68184491. The reversal of 68184470 is 7448186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3409214 + ... + 3409233.

It is an arithmetic number, because the mean of its divisors is an integer number (15341508).

Almost surely, 268184470 is an apocalyptic number.

68184470 is a deficient number, since it is larger than the sum of its proper divisors (54547594).

68184470 is a wasteful number, since it uses less digits than its factorization.

68184470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6818454.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 68184470 is about 8257.3888124515. The cubic root of 68184470 is about 408.5342666041.

The spelling of 68184470 in words is "sixty-eight million, one hundred eighty-four thousand, four hundred seventy".

Divisors: 1 2 5 10 6818447 13636894 34092235 68184470