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14215925 = 525310729
BaseRepresentation
bin110110001110…
…101011110101
3222202020120202
4312032223311
512114402200
61224410245
7231555563
oct66165365
928666522
1014215925
11802a6a9
124916985
132c397b9
141c60a33
1513ac1d5
hexd8eaf5

14215925 has 12 divisors (see below), whose sum is σ = 17962020. Its totient is φ = 11157120.

The previous prime is 14215897. The next prime is 14215931. The reversal of 14215925 is 52951241.

14215925 = T464 + T465 + ... + T569.

It can be written as a sum of positive squares in 6 ways, for example, as 145924 + 14070001 = 382^2 + 3751^2 .

It is not a de Polignac number, because 14215925 - 214 = 14199541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4040 + ... + 6689.

It is an arithmetic number, because the mean of its divisors is an integer number (1496835).

Almost surely, 214215925 is an apocalyptic number.

It is an amenable number.

14215925 is a deficient number, since it is larger than the sum of its proper divisors (3746095).

14215925 is a wasteful number, since it uses less digits than its factorization.

14215925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10792 (or 10787 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 14215925 is about 3770.4011722892. The cubic root of 14215925 is about 242.2469816439.

The spelling of 14215925 in words is "fourteen million, two hundred fifteen thousand, nine hundred twenty-five".

Divisors: 1 5 25 53 265 1325 10729 53645 268225 568637 2843185 14215925