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14402025 = 3252112232
BaseRepresentation
bin110110111100…
…000111101001
31000002200212100
4312330013221
512141331100
61232404013
7233262261
oct66740751
930080770
1014402025
118147500
1249a6609
132ca3411
141cac7a1
1513e7400
hexdbc1e9

14402025 has 81 divisors (see below), whose sum is σ = 29640247. Its totient is φ = 6679200.

The previous prime is 14401993. The next prime is 14402027. The reversal of 14402025 is 52020441.

14402025 = 5122 + 5132 + ... + 5612.

The square root of 14402025 is 3795.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5184729 + 9217296 = 2277^2 + 3036^2 .

It is not a de Polignac number, because 14402025 - 25 = 14401993 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 = 14401989 and 14402007.

It is not an unprimeable number, because it can be changed into a prime (14402027) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 626164 + ... + 626186.

Almost surely, 214402025 is an apocalyptic number.

14402025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

14402025 is the 3795-th square number.

14402025 is the 1898-th centered octagonal number.

It is an amenable number.

14402025 is an abundant number, since it is smaller than the sum of its proper divisors (15238222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14402025 is a wasteful number, since it uses less digits than its factorization.

14402025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The cubic root of 14402025 is about 243.2994834172.

Adding to 14402025 its reverse (52020441), we get a palindrome (66422466).

The spelling of 14402025 in words is "fourteen million, four hundred two thousand, twenty-five".

Divisors: 1 3 5 9 11 15 23 25 33 45 55 69 75 99 115 121 165 207 225 253 275 345 363 495 529 575 605 759 825 1035 1089 1265 1587 1725 1815 2277 2475 2645 2783 3025 3795 4761 5175 5445 5819 6325 7935 8349 9075 11385 13225 13915 17457 18975 23805 25047 27225 29095 39675 41745 52371 56925 64009 69575 87285 119025 125235 145475 192027 208725 261855 320045 436425 576081 626175 960135 1309275 1600225 2880405 4800675 14402025