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68827420 = 2253441371
BaseRepresentation
bin1000001101000…
…11100100011100
311210111210110201
410012203210130
5120104434140
610455113244
71464011014
oct406434434
9153453421
1068827420
1135940072
121b072824
131134abac
1491d8c44
15609849a
hex41a391c

68827420 has 12 divisors (see below), whose sum is σ = 144537624. Its totient is φ = 27530960.

The previous prime is 68827403. The next prime is 68827433. The reversal of 68827420 is 2472886.

It is a self number, because there is not a number n which added to its sum of digits gives 68827420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1720666 + ... + 1720705.

It is an arithmetic number, because the mean of its divisors is an integer number (12044802).

Almost surely, 268827420 is an apocalyptic number.

It is an amenable number.

68827420 is an abundant number, since it is smaller than the sum of its proper divisors (75710204).

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

68827420 is a wasteful number, since it uses less digits than its factorization.

68827420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441380 (or 3441378 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 68827420 is about 8296.2292639488. The cubic root of 68827420 is about 409.8143518028.

The spelling of 68827420 in words is "sixty-eight million, eight hundred twenty-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 3441371 6882742 13765484 17206855 34413710 68827420