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68654934 = 23214092707
BaseRepresentation
bin1000001011110…
…01011101010110
311210012000212100
410011321131112
5120033424214
610451302530
71462362105
oct405713526
9153160770
1068654934
1135832517
121abaaa46
13112ba52a
14919203c
156062309
hex4179756

68654934 has 24 divisors (see below), whose sum is σ = 148912920. Its totient is φ = 22860288.

The previous prime is 68654917. The next prime is 68654939. The reversal of 68654934 is 43945686.

It is a self number, because there is not a number n which added to its sum of digits gives 68654934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68654939) 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, 24009 + ... + 26715.

It is an arithmetic number, because the mean of its divisors is an integer number (6204705).

Almost surely, 268654934 is an apocalyptic number.

68654934 is an abundant number, since it is smaller than the sum of its proper divisors (80257986).

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

68654934 is a wasteful number, since it uses less digits than its factorization.

68654934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124 (or 4121 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 68654934 is about 8285.8272972589. The cubic root of 68654934 is about 409.4717249370.

The spelling of 68654934 in words is "sixty-eight million, six hundred fifty-four thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 9 18 1409 2707 2818 4227 5414 8121 8454 12681 16242 24363 25362 48726 3814163 7628326 11442489 22884978 34327467 68654934