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68911384 = 2379109037
BaseRepresentation
bin1000001101110…
…00000100011000
311210200001122111
410012320010120
5120120131014
610501002104
71464510553
oct406700430
9153601574
1068911384
1135998163
121b0b3334
131137a189
14921b69a
1560b32c4
hex41b8118

68911384 has 16 divisors (see below), whose sum is σ = 130845600. Its totient is φ = 34019232.

The previous prime is 68911379. The next prime is 68911397. The reversal of 68911384 is 48311986.

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, 53887 + ... + 55150.

It is an arithmetic number, because the mean of its divisors is an integer number (8177850).

Almost surely, 268911384 is an apocalyptic number.

It is an amenable number.

68911384 is a deficient number, since it is larger than the sum of its proper divisors (61934216).

68911384 is a wasteful number, since it uses less digits than its factorization.

68911384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109122 (or 109118 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 68911384 is about 8301.2880928203. The cubic root of 68911384 is about 409.9809310981.

The spelling of 68911384 in words is "sixty-eight million, nine hundred eleven thousand, three hundred eighty-four".

Divisors: 1 2 4 8 79 158 316 632 109037 218074 436148 872296 8613923 17227846 34455692 68911384