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16028740 = 2257138807
BaseRepresentation
bin111101001001…
…010001000100
31010011100022001
4331021101010
513100404430
61331315044
7253146010
oct75112104
933140261
1016028740
1190586a2
12544ba84
133422980
1421b3540
1516193ca
hexf49444

16028740 has 48 divisors (see below), whose sum is σ = 41432832. Its totient is φ = 5072256.

The previous prime is 16028729. The next prime is 16028743. The reversal of 16028740 is 4782061.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 16028699 and 16028708.

It is not an unprimeable number, because it can be changed into a prime (16028743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2584 + ... + 6223.

It is an arithmetic number, because the mean of its divisors is an integer number (863184).

Almost surely, 216028740 is an apocalyptic number.

16028740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16028740 is an abundant number, since it is smaller than the sum of its proper divisors (25404092).

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

16028740 is a wasteful number, since it uses less digits than its factorization.

16028740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8836 (or 8834 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 16028740 is about 4003.5908881903. The cubic root of 16028740 is about 252.1349952780.

It can be divided in two parts, 160 and 28740, that added together give a square (28900 = 1702).

The spelling of 16028740 in words is "sixteen million, twenty-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 8807 17614 35228 44035 61649 88070 114491 123298 176140 228982 246596 308245 457964 572455 616490 801437 1144910 1232980 1602874 2289820 3205748 4007185 8014370 16028740