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14712820 = 22517109397
BaseRepresentation
bin111000000111…
…111111110100
31000200111012021
4320013333310
512231302240
61243202524
7236025343
oct70077764
930614167
1014712820
118339a61
124b16444
133081a15
141d4db5a
15145954a
hexe07ff4

14712820 has 48 divisors (see below), whose sum is σ = 33097680. Its totient is φ = 5474304.

The previous prime is 14712811. The next prime is 14712851. The reversal of 14712820 is 2821741.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1008016 + 13704804 = 1004^2 + 3702^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36862 + ... + 37258.

It is an arithmetic number, because the mean of its divisors is an integer number (689535).

Almost surely, 214712820 is an apocalyptic number.

14712820 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 14712820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16548840).

14712820 is an abundant number, since it is smaller than the sum of its proper divisors (18384860).

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

14712820 is a wasteful number, since it uses less digits than its factorization.

14712820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 14712820 is about 3835.7293960862. The cubic root of 14712820 is about 245.0371733127.

The spelling of 14712820 in words is "fourteen million, seven hundred twelve thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 109 170 218 340 397 436 545 794 1090 1588 1853 1985 2180 3706 3970 6749 7412 7940 9265 13498 18530 26996 33745 37060 43273 67490 86546 134980 173092 216365 432730 735641 865460 1471282 2942564 3678205 7356410 14712820