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68818463 = 710219629
BaseRepresentation
bin1000001101000…
…01011000011111
311210111100011222
410012201120133
5120104142323
610455003555
71463642630
oct406413037
9153440158
1068818463
113593436a
121b0695bb
1311346aac
1491d5887
1560959c8
hex41a161f

68818463 has 8 divisors (see below), whose sum is σ = 78734880. Its totient is φ = 58923360.

The previous prime is 68818423. The next prime is 68818531. The reversal of 68818463 is 36481886.

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

It is a cyclic number.

It is not a de Polignac number, because 68818463 - 214 = 68802079 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68818423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2333 + ... + 11961.

It is an arithmetic number, because the mean of its divisors is an integer number (9841860).

Almost surely, 268818463 is an apocalyptic number.

68818463 is a deficient number, since it is larger than the sum of its proper divisors (9916417).

68818463 is a wasteful number, since it uses less digits than its factorization.

68818463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10657.

The product of its digits is 221184, while the sum is 44.

The square root of 68818463 is about 8295.6894228268. The cubic root of 68818463 is about 409.7965736828.

The spelling of 68818463 in words is "sixty-eight million, eight hundred eighteen thousand, four hundred sixty-three".

Divisors: 1 7 1021 7147 9629 67403 9831209 68818463