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68818774 = 2101340687
BaseRepresentation
bin1000001101000…
…01011101010110
311210111100121111
410012201131112
5120104200044
610455005234
71463643553
oct406413526
9153440544
1068818774
1135934622
121b06981a
1311346c8b
1491d5a2a
156095b34
hex41a1756

68818774 has 8 divisors (see below), whose sum is σ = 104250528. Its totient is φ = 34068600.

The previous prime is 68818747. The next prime is 68818781. The reversal of 68818774 is 47781886.

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

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, 170142 + ... + 170545.

It is an arithmetic number, because the mean of its divisors is an integer number (13031316).

Almost surely, 268818774 is an apocalyptic number.

68818774 is a deficient number, since it is larger than the sum of its proper divisors (35431754).

68818774 is a wasteful number, since it uses less digits than its factorization.

68818774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340790.

The product of its digits is 602112, while the sum is 49.

The square root of 68818774 is about 8295.7081674803. The cubic root of 68818774 is about 409.7971909907.

The spelling of 68818774 in words is "sixty-eight million, eight hundred eighteen thousand, seven hundred seventy-four".

Divisors: 1 2 101 202 340687 681374 34409387 68818774