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949109980 = 2257136183103
BaseRepresentation
bin111000100100100…
…100010011011100
32110010220210010111
4320210210103130
53420433004410
6234102415404
732343205330
oct7044442334
92403823114
10949109980
11447825415
12225a31564
1312182c950
14900a17c0
15584ccb8a
hex389244dc

949109980 has 192 divisors, whose sum is σ = 2547836928. Its totient is φ = 289059840.

The previous prime is 949109971. The next prime is 949110013. The reversal of 949109980 is 89901949.

It is a super-3 number, since 3×9491099803 (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9214609 + ... + 9214711.

It is an arithmetic number, because the mean of its divisors is an integer number (13269984).

Almost surely, 2949109980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 949109980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1273918464).

949109980 is an abundant number, since it is smaller than the sum of its proper divisors (1598726948).

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

949109980 is a wasteful number, since it uses less digits than its factorization.

949109980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 49.

The square root of 949109980 is about 30807.6286007216. The cubic root of 949109980 is about 982.7404828869.

The spelling of 949109980 in words is "nine hundred forty-nine million, one hundred nine thousand, nine hundred eighty".