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68616950 = 2523144269
BaseRepresentation
bin1000001011100…
…00001011110110
311210010002202112
410011300023312
5120031220300
610450411022
71462143263
oct405601366
9153102675
1068616950
1135806a26
121ab90a72
13112a615c
14918226a
156055e35
hex41702f6

68616950 has 24 divisors (see below), whose sum is σ = 131747520. Its totient is φ = 26560800.

The previous prime is 68616881. The next prime is 68616959. The reversal of 68616950 is 5961686.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 68616898 and 68616907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68616959) 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, 20585 + ... + 23684.

It is an arithmetic number, because the mean of its divisors is an integer number (5489480).

Almost surely, 268616950 is an apocalyptic number.

68616950 is a deficient number, since it is larger than the sum of its proper divisors (63130570).

68616950 is a wasteful number, since it uses less digits than its factorization.

68616950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44312 (or 44307 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 68616950 is about 8283.5348734704. The cubic root of 68616950 is about 409.3961962880.

The spelling of 68616950 in words is "sixty-eight million, six hundred sixteen thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 31 50 62 155 310 775 1550 44269 88538 221345 442690 1106725 1372339 2213450 2744678 6861695 13723390 34308475 68616950