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68866974 = 23211347813
BaseRepresentation
bin1000001101011…
…01001110011110
311210120210201200
410012231032132
5120112220344
610500020330
71464234231
oct406551636
9153523650
1068866974
1135967860
121b0916a6
1311362bb7
149209418
1560a5069
hex41ad39e

68866974 has 24 divisors (see below), whose sum is σ = 162776952. Its totient is φ = 20868720.

The previous prime is 68866969. The next prime is 68866979. The reversal of 68866974 is 47966886.

It is an interprime number because it is at equal distance from previous prime (68866969) and next prime (68866979).

It is a self number, because there is not a number n which added to its sum of digits gives 68866974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68866979) 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, 173709 + ... + 174104.

It is an arithmetic number, because the mean of its divisors is an integer number (6782373).

Almost surely, 268866974 is an apocalyptic number.

68866974 is an abundant number, since it is smaller than the sum of its proper divisors (93909978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68866974 is a wasteful number, since it uses less digits than its factorization.

68866974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347832 (or 347829 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 68866974 is about 8298.6127756391. The cubic root of 68866974 is about 409.8928413190.

The spelling of 68866974 in words is "sixty-eight million, eight hundred sixty-six thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 347813 695626 1043439 2086878 3130317 3825943 6260634 7651886 11477829 22955658 34433487 68866974