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6189012 = 2232171917
BaseRepresentation
bin10111100110111111010100
3102122102201200
4113212333110
53041022022
6340352500
7103414524
oct27467724
912572650
106189012
113547995
1220a5730
13138904b
14b71684
15823bac
hex5e6fd4

6189012 has 18 divisors (see below), whose sum is σ = 15644538. Its totient is φ = 2062992.

The previous prime is 6188993. The next prime is 6189017. The reversal of 6189012 is 2109816.

It can be written as a sum of positive squares in only one way, i.e., 5035536 + 1153476 = 2244^2 + 1074^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×61890122 = 76607739072288, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6189017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85923 + ... + 85994.

It is an arithmetic number, because the mean of its divisors is an integer number (869141).

Almost surely, 26189012 is an apocalyptic number.

It is an amenable number.

6189012 is an abundant number, since it is smaller than the sum of its proper divisors (9455526).

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

6189012 is a wasteful number, since it uses less digits than its factorization.

6189012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171927 (or 171922 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 6189012 is about 2487.7724976372. The cubic root of 6189012 is about 183.6004642077.

The spelling of 6189012 in words is "six million, one hundred eighty-nine thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 171917 343834 515751 687668 1031502 1547253 2063004 3094506 6189012