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14440020 = 2235734381
BaseRepresentation
bin110111000101…
…011001010100
31000011121222120
4313011121110
512144040040
61233255540
7233511120
oct67053124
930147876
1014440020
118173001
124a045b0
132cb77ba
141cbc580
1514037d0
hexdc5654

14440020 has 48 divisors (see below), whose sum is σ = 46209408. Its totient is φ = 3300480.

The previous prime is 14440001. The next prime is 14440031. The reversal of 14440020 is 2004441.

14440020 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

14440020 is strictly pandigital in base 8.

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, 16771 + ... + 17610.

It is an arithmetic number, because the mean of its divisors is an integer number (962696).

Almost surely, 214440020 is an apocalyptic number.

14440020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14440020 is an abundant number, since it is smaller than the sum of its proper divisors (31769388).

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

14440020 is a wasteful number, since it uses less digits than its factorization.

14440020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34400 (or 34398 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 14440020 is about 3800.0026315780. The cubic root of 14440020 is about 243.5132507297.

Adding to 14440020 its reverse (2004441), we get a palindrome (16444461).

The spelling of 14440020 in words is "fourteen million, four hundred forty thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 34381 68762 103143 137524 171905 206286 240667 343810 412572 481334 515715 687620 722001 962668 1031430 1203335 1444002 2062860 2406670 2888004 3610005 4813340 7220010 14440020