Search a number
-
+
14870471 = 721147587
BaseRepresentation
bin111000101110…
…011111000111
31000222111110012
4320232133013
512301323341
61250420435
7240253100
oct70563707
930874405
1014870471
118437450
124b9171b
1331086c5
141d913a7
15148b0eb
hexe2e7c7

14870471 has 24 divisors (see below), whose sum is σ = 19305216. Its totient is φ = 11321520.

The previous prime is 14870447. The next prime is 14870491. The reversal of 14870471 is 17407841.

It is not a de Polignac number, because 14870471 - 210 = 14869447 is a prime.

It is a super-3 number, since 3×148704713 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14870491) 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, 25040 + ... + 25626.

It is an arithmetic number, because the mean of its divisors is an integer number (804384).

Almost surely, 214870471 is an apocalyptic number.

14870471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14870471 is a deficient number, since it is larger than the sum of its proper divisors (4434745).

14870471 is a wasteful number, since it uses less digits than its factorization.

14870471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 14870471 is about 3856.2249675038. The cubic root of 14870471 is about 245.9092742754.

The spelling of 14870471 in words is "fourteen million, eight hundred seventy thousand, four hundred seventy-one".

Divisors: 1 7 11 47 49 77 329 517 539 587 2303 3619 4109 6457 25333 27589 28763 45199 193123 303479 316393 1351861 2124353 14870471