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68530016 = 252973847
BaseRepresentation
bin1000001010110…
…10111101100000
311202221200111202
410011122331200
5120020430031
610444500332
71461331652
oct405327540
9152850452
1068530016
1135757685
121ab4a6a8
1311275709
14915c6d2
15603a2cb
hex415af60

68530016 has 24 divisors (see below), whose sum is σ = 139572720. Its totient is φ = 33083008.

The previous prime is 68529997. The next prime is 68530027. The reversal of 68530016 is 61003586.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 35996 + ... + 37851.

It is an arithmetic number, because the mean of its divisors is an integer number (5815530).

Almost surely, 268530016 is an apocalyptic number.

It is an amenable number.

68530016 is an abundant number, since it is smaller than the sum of its proper divisors (71042704).

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

68530016 is a wasteful number, since it uses less digits than its factorization.

68530016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73886 (or 73878 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 68530016 is about 8278.2858128963. The cubic root of 68530016 is about 409.2232288705.

The spelling of 68530016 in words is "sixty-eight million, five hundred thirty thousand, sixteen".

Divisors: 1 2 4 8 16 29 32 58 116 232 464 928 73847 147694 295388 590776 1181552 2141563 2363104 4283126 8566252 17132504 34265008 68530016