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14405028 = 22311611789
BaseRepresentation
bin110110111100…
…110110100100
31000002211222120
4312330312210
512141430103
61232425540
7233304111
oct66746644
930084876
1014405028
118149790
1249a82b0
132ca48b1
141cad908
1513e8253
hexdbcda4

14405028 has 48 divisors (see below), whose sum is σ = 37289280. Its totient is φ = 4291200.

The previous prime is 14405023. The next prime is 14405033. The reversal of 14405028 is 82050441.

14405028 is a nontrivial binomial coefficient, being equal to C(5368, 2).

It is an interprime number because it is at equal distance from previous prime (14405023) and next prime (14405033).

It is a junction number, because it is equal to n+sod(n) for n = 14404989 and 14405007.

It is not an unprimeable number, because it can be changed into a prime (14405023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7158 + ... + 8946.

It is an arithmetic number, because the mean of its divisors is an integer number (776860).

Almost surely, 214405028 is an apocalyptic number.

14405028 is the 5367-th triangular number and also the 2684-th hexagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14405028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18644640).

14405028 is an abundant number, since it is smaller than the sum of its proper divisors (22884252).

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

14405028 is a wasteful number, since it uses less digits than its factorization.

14405028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868 (or 1866 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 14405028 is about 3795.3956315515. The cubic root of 14405028 is about 243.3163925572.

Adding to 14405028 its reverse (82050441), we get a palindrome (96455469).

The spelling of 14405028 in words is "fourteen million, four hundred five thousand, twenty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 61 66 122 132 183 244 366 671 732 1342 1789 2013 2684 3578 4026 5367 7156 8052 10734 19679 21468 39358 59037 78716 109129 118074 218258 236148 327387 436516 654774 1200419 1309548 2400838 3601257 4801676 7202514 14405028