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14240020 = 2253532017
BaseRepresentation
bin110110010100…
…100100010100
3222210110122011
4312110210110
512121140040
61225114004
7232016044
oct66244424
928713564
1014240020
118046813
124928904
132c47762
141c69724
1513b43ea
hexd94914

14240020 has 24 divisors (see below), whose sum is σ = 30003624. Its totient is φ = 5677056.

The previous prime is 14240011. The next prime is 14240029. The reversal of 14240020 is 2004241.

It is an interprime number because it is at equal distance from previous prime (14240011) and next prime (14240029).

It can be written as a sum of positive squares in 4 ways, for example, as 2869636 + 11370384 = 1694^2 + 3372^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14240029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6052 + ... + 8068.

It is an arithmetic number, because the mean of its divisors is an integer number (1250151).

Almost surely, 214240020 is an apocalyptic number.

14240020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14240020 is an abundant number, since it is smaller than the sum of its proper divisors (15763604).

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

14240020 is a wasteful number, since it uses less digits than its factorization.

14240020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379 (or 2377 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 14240020 is about 3773.5951028164. The cubic root of 14240020 is about 242.3837682966.

Adding to 14240020 its reverse (2004241), we get a palindrome (16244261).

The spelling of 14240020 in words is "fourteen million, two hundred forty thousand, twenty".

Divisors: 1 2 4 5 10 20 353 706 1412 1765 2017 3530 4034 7060 8068 10085 20170 40340 712001 1424002 2848004 3560005 7120010 14240020