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14742728 = 23721113263
BaseRepresentation
bin111000001111…
…010011001000
31000202000012222
4320033103020
512233231403
61243553212
7236211500
oct70172310
930660188
1014742728
11835a480
124b2b808
133092510
141d5aa00
151463338
hexe0f4c8

14742728 has 96 divisors (see below), whose sum is σ = 37920960. Its totient is φ = 5281920.

The previous prime is 14742703. The next prime is 14742751. The reversal of 14742728 is 82724741.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55925 + ... + 56187.

It is an arithmetic number, because the mean of its divisors is an integer number (395010).

Almost surely, 214742728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14742728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18960480).

14742728 is an abundant number, since it is smaller than the sum of its proper divisors (23178232).

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

14742728 is a wasteful number, since it uses less digits than its factorization.

14742728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 296 counting only the distinct ones).

The product of its digits is 25088, while the sum is 35.

The square root of 14742728 is about 3839.6260234559. The cubic root of 14742728 is about 245.2030968990.

It can be divided in two parts, 14742 and 728, that multiplied together give a square (10732176 = 32762).

The spelling of 14742728 in words is "fourteen million, seven hundred forty-two thousand, seven hundred twenty-eight".

Divisors: 1 2 4 7 8 11 13 14 22 26 28 44 49 52 56 77 88 91 98 104 143 154 182 196 263 286 308 364 392 526 539 572 616 637 728 1001 1052 1078 1144 1274 1841 2002 2104 2156 2548 2893 3419 3682 4004 4312 5096 5786 6838 7007 7364 8008 11572 12887 13676 14014 14728 20251 23144 23933 25774 27352 28028 37609 40502 47866 51548 56056 75218 81004 95732 103096 141757 150436 162008 167531 191464 263263 283514 300872 335062 526526 567028 670124 1053052 1134056 1340248 1842841 2106104 3685682 7371364 14742728