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14247780 = 2235832861
BaseRepresentation
bin110110010110…
…011101100100
3222210212021120
4312112131210
512121412110
61225213540
7232050501
oct66263544
928725246
1014247780
118051628
1249312b0
132c4b151
141c6c4a8
1513b6870
hexd96764

14247780 has 48 divisors (see below), whose sum is σ = 40388544. Its totient is φ = 3752320.

The previous prime is 14247769. The next prime is 14247781. The reversal of 14247780 is 8774241.

It is not an unprimeable number, because it can be changed into a prime (14247781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3550 + ... + 6410.

It is an arithmetic number, because the mean of its divisors is an integer number (841428).

Almost surely, 214247780 is an apocalyptic number.

14247780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14247780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20194272).

14247780 is an abundant number, since it is smaller than the sum of its proper divisors (26140764).

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

14247780 is a wasteful number, since it uses less digits than its factorization.

14247780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956 (or 2954 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 14247780 is about 3774.6231599989. The cubic root of 14247780 is about 242.4277887518.

The spelling of 14247780 in words is "fourteen million, two hundred forty-seven thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 83 166 249 332 415 498 830 996 1245 1660 2490 2861 4980 5722 8583 11444 14305 17166 28610 34332 42915 57220 85830 171660 237463 474926 712389 949852 1187315 1424778 2374630 2849556 3561945 4749260 7123890 14247780