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3189888906 = 232323115137
BaseRepresentation
bin1011111000100001…
…1101011110001010
322020022100010221120
42332020131132022
523013102421111
61244310220110
7142022415441
oct27610353612
98208303846
103189888906
111397677826
12750354636
133bab3b539
14223915d58
1513a0a2406
hexbe21d78a

3189888906 has 16 divisors (see below), whose sum is σ = 6657159744. Its totient is φ = 1017065984.

The previous prime is 3189888869. The next prime is 3189888953. The reversal of 3189888906 is 6098889813.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3189888906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11557431 + ... + 11557706.

It is an arithmetic number, because the mean of its divisors is an integer number (416072484).

Almost surely, 23189888906 is an apocalyptic number.

3189888906 is an abundant number, since it is smaller than the sum of its proper divisors (3467270838).

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

3189888906 is a wasteful number, since it uses less digits than its factorization.

3189888906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23115165.

The product of its (nonzero) digits is 5971968, while the sum is 60.

The square root of 3189888906 is about 56479.1014978107. The cubic root of 3189888906 is about 1472.0588956847.

The spelling of 3189888906 in words is "three billion, one hundred eighty-nine million, eight hundred eighty-eight thousand, nine hundred six".

Divisors: 1 2 3 6 23 46 69 138 23115137 46230274 69345411 138690822 531648151 1063296302 1594944453 3189888906