Search a number
-
+
14248720 = 2451710477
BaseRepresentation
bin110110010110…
…101100010000
3222210220120101
4312112230100
512121424340
61225222144
7232053313
oct66265420
928726511
1014248720
118052302
124931954
132c4b6c5
141c6c97a
1513b6c9a
hexd96b10

14248720 has 40 divisors (see below), whose sum is σ = 35080344. Its totient is φ = 5363712.

The previous prime is 14248691. The next prime is 14248757. The reversal of 14248720 is 2784241.

It can be written as a sum of positive squares in 4 ways, for example, as 4613904 + 9634816 = 2148^2 + 3104^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 3879 + ... + 6598.

Almost surely, 214248720 is an apocalyptic number.

14248720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14248720 is an abundant number, since it is smaller than the sum of its proper divisors (20831624).

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

14248720 is a wasteful number, since it uses less digits than its factorization.

14248720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10507 (or 10501 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 14248720 is about 3774.7476736863. The cubic root of 14248720 is about 242.4331200411.

The spelling of 14248720 in words is "fourteen million, two hundred forty-eight thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1360 10477 20954 41908 52385 83816 104770 167632 178109 209540 356218 419080 712436 838160 890545 1424872 1781090 2849744 3562180 7124360 14248720