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68779514 = 2311109347
BaseRepresentation
bin1000001100101…
…11110111111010
311210102100202102
410012113313322
5120101421024
610454103402
71463421236
oct406276772
9153370672
1068779514
1135908081
121b04ab62
131133214b
1491c55c6
1560891ae
hex4197dfa

68779514 has 8 divisors (see below), whose sum is σ = 106497408. Its totient is φ = 33280380.

The previous prime is 68779511. The next prime is 68779537. The reversal of 68779514 is 41597786.

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

It is not an unprimeable number, because it can be changed into a prime (68779511) 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, 554612 + ... + 554735.

It is an arithmetic number, because the mean of its divisors is an integer number (13312176).

Almost surely, 268779514 is an apocalyptic number.

68779514 is a deficient number, since it is larger than the sum of its proper divisors (37717894).

68779514 is a wasteful number, since it uses less digits than its factorization.

68779514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109380.

The product of its digits is 423360, while the sum is 47.

The square root of 68779514 is about 8293.3415460838. The cubic root of 68779514 is about 409.7192486057.

The spelling of 68779514 in words is "sixty-eight million, seven hundred seventy-nine thousand, five hundred fourteen".

Divisors: 1 2 31 62 1109347 2218694 34389757 68779514