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13863225 = 352184843
BaseRepresentation
bin110100111000…
…100100111001
3222002022202210
4310320210321
512022110400
61213045333
7225556365
oct64704471
928068683
1013863225
117909712
124786849
132b450bc
141bac2a5
15133c950
hexd38939

13863225 has 12 divisors (see below), whose sum is σ = 22920656. Its totient is φ = 7393680.

The previous prime is 13863221. The next prime is 13863233. The reversal of 13863225 is 52236831.

13863225 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 13863225 - 22 = 13863221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13863192 and 13863201.

It is not an unprimeable number, because it can be changed into a prime (13863221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92347 + ... + 92496.

Almost surely, 213863225 is an apocalyptic number.

13863225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13863225 is a deficient number, since it is larger than the sum of its proper divisors (9057431).

13863225 is a wasteful number, since it uses less digits than its factorization.

13863225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184856 (or 184851 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 13863225 is about 3723.3351984478. The cubic root of 13863225 is about 240.2267821680.

The spelling of 13863225 in words is "thirteen million, eight hundred sixty-three thousand, two hundred twenty-five".

Divisors: 1 3 5 15 25 75 184843 554529 924215 2772645 4621075 13863225