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2205230312220 = 2235133259867511
BaseRepresentation
bin100000000101110001111…
…110000010101100011100
321210211002021212220222220
4200011301332002230130
5242112302424442340
64405022510505340
7315215443242525
oct40056176025434
97724067786886
102205230312220
11780262025a71
122b747b205250
1312cc4c350540
1478a3b46584c
153c56a6eded0
hex20171f82b1c

2205230312220 has 96 divisors (see below), whose sum is σ = 6651665610240. Its totient is φ = 542658735360.

The previous prime is 2205230312179. The next prime is 2205230312293. The reversal of 2205230312220 is 222130325022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2108265 + ... + 2975775.

It is an arithmetic number, because the mean of its divisors is an integer number (69288183440).

Almost surely, 22205230312220 is an apocalyptic number.

2205230312220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2205230312220 is an abundant number, since it is smaller than the sum of its proper divisors (4446435298020).

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

2205230312220 is a wasteful number, since it uses less digits than its factorization.

2205230312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870795 (or 870793 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 2205230312220 its reverse (222130325022), we get a palindrome (2427360637242).

The spelling of 2205230312220 in words is "two trillion, two hundred five billion, two hundred thirty million, three hundred twelve thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 3259 6518 9777 13036 16295 19554 32590 39108 42367 48885 65180 84734 97770 127101 169468 195540 211835 254202 423670 508404 635505 847340 867511 1271010 1735022 2542020 2602533 3470044 4337555 5205066 8675110 10410132 11277643 13012665 17350220 22555286 26025330 33832929 45110572 52050660 56388215 67665858 112776430 135331716 169164645 225552860 338329290 676658580 2827218349 5654436698 8481655047 11308873396 14136091745 16963310094 28272183490 33926620188 36753838537 42408275235 56544366980 73507677074 84816550470 110261515611 147015354148 169633100940 183769192685 220523031222 367538385370 441046062444 551307578055 735076770740 1102615156110 2205230312220