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20140068 = 2231329931
BaseRepresentation
bin100110011010…
…1000000100100
31101220012222110
41030311000210
520123440233
61555401020
7333121254
oct114650044
941805873
1020140068
1110406593
1268b3170
134232100
142963964
151b7c663
hex1335024

20140068 has 36 divisors (see below), whose sum is σ = 50891568. Its totient is φ = 6196320.

The previous prime is 20140067. The next prime is 20140069. The reversal of 20140068 is 86004102.

It is an interprime number because it is at equal distance from previous prime (20140067) and next prime (20140069).

It is a super-3 number, since 3×201400683 (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20140067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2938 + ... + 6993.

Almost surely, 220140068 is an apocalyptic number.

It is an amenable number.

20140068 is an abundant number, since it is smaller than the sum of its proper divisors (30751500).

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

20140068 is a wasteful number, since it uses less digits than its factorization.

20140068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9964 (or 9949 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 20140068 is about 4487.7687106178. The cubic root of 20140068 is about 272.0739598473.

The spelling of 20140068 in words is "twenty million, one hundred forty thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 169 338 507 676 1014 2028 9931 19862 29793 39724 59586 119172 129103 258206 387309 516412 774618 1549236 1678339 3356678 5035017 6713356 10070034 20140068