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68815846 = 2112319173
BaseRepresentation
bin1000001101000…
…00101111100110
311210111012121001
410012200233212
5120104101341
610454543514
71463632201
oct406405746
9153435531
1068815846
1135932400
121b067b9a
1311345848
1491d4938
156094d31
hex41a0be6

68815846 has 24 divisors (see below), whose sum is σ = 117133632. Its totient is φ = 30267600.

The previous prime is 68815841. The next prime is 68815883. The reversal of 68815846 is 64851886.

It is a junction number, because it is equal to n+sod(n) for n = 68815796 and 68815805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68815841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2916 + ... + 12088.

It is an arithmetic number, because the mean of its divisors is an integer number (4880568).

Almost surely, 268815846 is an apocalyptic number.

68815846 is a deficient number, since it is larger than the sum of its proper divisors (48317786).

68815846 is a wasteful number, since it uses less digits than its factorization.

68815846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9228 (or 9217 counting only the distinct ones).

The product of its digits is 368640, while the sum is 46.

The square root of 68815846 is about 8295.5316888069. The cubic root of 68815846 is about 409.7913790922.

The spelling of 68815846 in words is "sixty-eight million, eight hundred fifteen thousand, eight hundred forty-six".

Divisors: 1 2 11 22 31 62 121 242 341 682 3751 7502 9173 18346 100903 201806 284363 568726 1109933 2219866 3127993 6255986 34407923 68815846