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16093225 = 52643729
BaseRepresentation
bin111101011001…
…000000101001
31010021121202101
4331121000221
513104440400
61332533401
7253535011
oct75310051
933247671
1016093225
1190a2095
125481261
133446125
1421ccc41
15162d56a
hexf59029

16093225 has 6 divisors (see below), whose sum is σ = 19955630. Its totient is φ = 12874560.

The previous prime is 16093213. The next prime is 16093229. The reversal of 16093225 is 52239061.

It can be written as a sum of positive squares in 3 ways, for example, as 2343961 + 13749264 = 1531^2 + 3708^2 .

It is not a de Polignac number, because 16093225 - 25 = 16093193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16093193 and 16093202.

It is not an unprimeable number, because it can be changed into a prime (16093229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 321840 + ... + 321889.

Almost surely, 216093225 is an apocalyptic number.

It is an amenable number.

16093225 is a deficient number, since it is larger than the sum of its proper divisors (3862405).

16093225 is an equidigital number, since it uses as much as digits as its factorization.

16093225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643739 (or 643734 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 16093225 is about 4011.6361998566. The cubic root of 16093225 is about 252.4726631190.

The spelling of 16093225 in words is "sixteen million, ninety-three thousand, two hundred twenty-five".

Divisors: 1 5 25 643729 3218645 16093225