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20141404220 = 2257294960937
BaseRepresentation
bin10010110000100001…
…010111000000111100
31220222200121100101002
4102300201113000330
5312222144413340
613130340105432
71312060053050
oct226041270074
956880540332
1020141404220
1185a6330113
123aa1395278
131b8ca87182
14d90db3c60
157cd39d715
hex4b085703c

20141404220 has 48 divisors (see below), whose sum is σ = 50006255040. Its totient is φ = 6667497984.

The previous prime is 20141404193. The next prime is 20141404229. The reversal of 20141404220 is 2240414102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20141404192 and 20141404201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20141404229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2476409 + ... + 2484528.

It is an arithmetic number, because the mean of its divisors is an integer number (1041796980).

Almost surely, 220141404220 is an apocalyptic number.

20141404220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20141404220 is an abundant number, since it is smaller than the sum of its proper divisors (29864850820).

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

20141404220 is a wasteful number, since it uses less digits than its factorization.

20141404220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960982 (or 4960980 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20141404220 its reverse (2240414102), we get a palindrome (22381818322).

The spelling of 20141404220 in words is "twenty billion, one hundred forty-one million, four hundred four thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 29 35 58 70 116 140 145 203 290 406 580 812 1015 2030 4060 4960937 9921874 19843748 24804685 34726559 49609370 69453118 99218740 138906236 143867173 173632795 287734346 347265590 575468692 694531180 719335865 1007070211 1438671730 2014140422 2877343460 4028280844 5035351055 10070702110 20141404220