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1678000164 = 223178225491
BaseRepresentation
bin110010000000100…
…0100000000100100
311022221110020111020
41210001010000210
511414032001124
6434301211140
756403523521
oct14401040044
94287406436
101678000164
117912073a5
123a9b60ab0
13209845b09
1411cbda148
159c4aa379
hex64044024

1678000164 has 24 divisors (see below), whose sum is σ = 4145647968. Its totient is φ = 526431360.

The previous prime is 1678000151. The next prime is 1678000169. The reversal of 1678000164 is 4610008761.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1678000169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4112542 + ... + 4112949.

It is an arithmetic number, because the mean of its divisors is an integer number (172735332).

Almost surely, 21678000164 is an apocalyptic number.

It is an amenable number.

1678000164 is an abundant number, since it is smaller than the sum of its proper divisors (2467647804).

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

1678000164 is a wasteful number, since it uses less digits than its factorization.

1678000164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8225515 (or 8225513 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1678000164 is about 40963.4002983151. The cubic root of 1678000164 is about 1188.3125021062.

The spelling of 1678000164 in words is "one billion, six hundred seventy-eight million, one hundred sixty-four", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 8225491 16450982 24676473 32901964 49352946 98705892 139833347 279666694 419500041 559333388 839000082 1678000164