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16910425 = 527711361
BaseRepresentation
bin100000010000…
…0100001011001
31011211010202001
41000200201121
513312113200
61402241001
7263510350
oct100404131
934733661
1016910425
119600064
1257b6161
13367108c
142362997
15174076a
hex1020859

16910425 has 24 divisors (see below), whose sum is σ = 24319872. Its totient is φ = 11424000.

The previous prime is 16910419. The next prime is 16910429. The reversal of 16910425 is 52401961.

It is not a de Polignac number, because 16910425 - 23 = 16910417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16910393 and 16910402.

It is not an unprimeable number, because it can be changed into a prime (16910429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11745 + ... + 13105.

It is an arithmetic number, because the mean of its divisors is an integer number (1013328).

Almost surely, 216910425 is an apocalyptic number.

It is an amenable number.

16910425 is a deficient number, since it is larger than the sum of its proper divisors (7409447).

16910425 is a wasteful number, since it uses less digits than its factorization.

16910425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449 (or 1444 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 16910425 is about 4112.2287144564. The cubic root of 16910425 is about 256.6757506952.

The spelling of 16910425 in words is "sixteen million, nine hundred ten thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 71 175 355 497 1361 1775 2485 6805 9527 12425 34025 47635 96631 238175 483155 676417 2415775 3382085 16910425