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14021868 = 2237792113
BaseRepresentation
bin110101011111…
…010011101100
3222101101101110
4311133103230
512042144433
61220312020
7230120040
oct65372354
928341343
1014021868
117a07923
124842610
132b9c383
141c10020
15136e963
hexd5f4ec

14021868 has 48 divisors (see below), whose sum is σ = 37882880. Its totient is φ = 3953664.

The previous prime is 14021857. The next prime is 14021873. The reversal of 14021868 is 86812041.

It is a super-2 number, since 2×140218682 = 393225564418848, which contains 22 as substring.

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, 5580 + ... + 7692.

Almost surely, 214021868 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 14021868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18941440).

14021868 is an abundant number, since it is smaller than the sum of its proper divisors (23861012).

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

14021868 is a wasteful number, since it uses less digits than its factorization.

14021868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206 (or 2204 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 14021868 is about 3744.5784809508. The cubic root of 14021868 is about 241.1396492106.

The spelling of 14021868 in words is "fourteen million, twenty-one thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 79 84 158 237 316 474 553 948 1106 1659 2113 2212 3318 4226 6339 6636 8452 12678 14791 25356 29582 44373 59164 88746 166927 177492 333854 500781 667708 1001562 1168489 2003124 2336978 3505467 4673956 7010934 14021868