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16420941 = 334091487
BaseRepresentation
bin111110101001…
…000001001101
31010220021022000
4332221001031
513200432231
61343542513
7256401315
oct76510115
933807260
1016420941
1192a6329
1255baa39
13352c344
142276445
1516956e6
hexfa904d

16420941 has 16 divisors (see below), whose sum is σ = 24403200. Its totient is φ = 10913184.

The previous prime is 16420927. The next prime is 16420961. The reversal of 16420941 is 14902461.

16420941 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16420941 - 219 = 15896653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16420961) 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, 10300 + ... + 11786.

It is an arithmetic number, because the mean of its divisors is an integer number (1525200).

Almost surely, 216420941 is an apocalyptic number.

It is an amenable number.

16420941 is a deficient number, since it is larger than the sum of its proper divisors (7982259).

16420941 is a wasteful number, since it uses less digits than its factorization.

16420941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905 (or 1899 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 16420941 is about 4052.2760271235. The cubic root of 16420941 is about 254.1749110408.

The spelling of 16420941 in words is "sixteen million, four hundred twenty thousand, nine hundred forty-one".

Divisors: 1 3 9 27 409 1227 1487 3681 4461 11043 13383 40149 608183 1824549 5473647 16420941