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13816425 = 352726317
BaseRepresentation
bin110100101101…
…001001101001
3221222221120110
4310231021221
512014111200
61212044533
7225303060
oct64551151
927887513
1013816425
117887537
124763749
132b299cc
141b991d7
15132db50
hexd2d269

13816425 has 24 divisors (see below), whose sum is σ = 26107456. Its totient is φ = 6315840.

The previous prime is 13816423. The next prime is 13816433. The reversal of 13816425 is 52461831.

13816425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13816425 - 21 = 13816423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13816392 and 13816401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13816423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12634 + ... + 13683.

Almost surely, 213816425 is an apocalyptic number.

13816425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13816425 is a deficient number, since it is larger than the sum of its proper divisors (12291031).

13816425 is a wasteful number, since it uses less digits than its factorization.

13816425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26337 (or 26332 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 13816425 is about 3717.0451974653. The cubic root of 13816425 is about 239.9561551851.

It can be divided in two parts, 13816 and 425, that added together give a palindrome (14241).

The spelling of 13816425 in words is "thirteen million, eight hundred sixteen thousand, four hundred twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 525 26317 78951 131585 184219 394755 552657 657925 921095 1973775 2763285 4605475 13816425