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16463680 = 26551449
BaseRepresentation
bin111110110011…
…011101000000
31010222102220221
4332303131000
513203314210
61344512424
7256640032
oct76633500
933872827
1016463680
119325452
12561b714
13354592c
142287c52
1516a31da
hexfb3740

16463680 has 28 divisors (see below), whose sum is σ = 39204900. Its totient is φ = 6585344.

The previous prime is 16463663. The next prime is 16463683. The reversal of 16463680 is 8636461.

It can be written as a sum of positive squares in 2 ways, for example, as 5494336 + 10969344 = 2344^2 + 3312^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16463683) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25405 + ... + 26044.

It is an arithmetic number, because the mean of its divisors is an integer number (1400175).

Almost surely, 216463680 is an apocalyptic number.

16463680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16463680 is an abundant number, since it is smaller than the sum of its proper divisors (22741220).

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

16463680 is an equidigital number, since it uses as much as digits as its factorization.

16463680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51466 (or 51456 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 16463680 is about 4057.5460564238. The cubic root of 16463680 is about 254.3952348039.

The spelling of 16463680 in words is "sixteen million, four hundred sixty-three thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 51449 102898 205796 257245 411592 514490 823184 1028980 1646368 2057960 3292736 4115920 8231840 16463680