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16144980 = 2235416563
BaseRepresentation
bin111101100101…
…101001010100
31010101020202020
4331211221110
513113114410
61334013140
7254141625
oct75455124
933336666
1016144980
119127a65
1254a71b0
133463857
142203a4c
15163da70
hexf65a54

16144980 has 48 divisors (see below), whose sum is σ = 46315584. Its totient is φ = 4199680.

The previous prime is 16144979. The next prime is 16144991. The reversal of 16144980 is 8944161.

It is a plaindrome in base 9.

It is a zygodrome in base 9.

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 15 ways as a sum of consecutive naturals, for example, 822 + ... + 5741.

It is an arithmetic number, because the mean of its divisors is an integer number (964908).

Almost surely, 216144980 is an apocalyptic number.

16144980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16144980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23157792).

16144980 is an abundant number, since it is smaller than the sum of its proper divisors (30170604).

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

16144980 is a wasteful number, since it uses less digits than its factorization.

16144980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6616 (or 6614 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 16144980 is about 4018.0816318238. The cubic root of 16144980 is about 252.7430199585.

The spelling of 16144980 in words is "sixteen million, one hundred forty-four thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 41 60 82 123 164 205 246 410 492 615 820 1230 2460 6563 13126 19689 26252 32815 39378 65630 78756 98445 131260 196890 269083 393780 538166 807249 1076332 1345415 1614498 2690830 3228996 4036245 5381660 8072490 16144980