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213232110220 = 225107557178889
BaseRepresentation
bin1100011010010110011…
…1111100101010001100
3202101101111211112022201
43012211213330222030
511443144410011340
6241542452051244
721256043013553
oct3064547745214
9671344745281
10213232110220
1182481a70488
12353ab003b24
131715280b7ac
14a46b5cad9a
15582ee7479a
hex31a59fca8c

213232110220 has 48 divisors (see below), whose sum is σ = 452786332320. Its totient is φ = 84343545344.

The previous prime is 213232110197. The next prime is 213232110241. The reversal of 213232110220 is 22011232312.

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, 1102536 + ... + 1281424.

It is an arithmetic number, because the mean of its divisors is an integer number (9433048590).

Almost surely, 2213232110220 is an apocalyptic number.

213232110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213232110220 is an abundant number, since it is smaller than the sum of its proper divisors (239554222100).

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

213232110220 is a wasteful number, since it uses less digits than its factorization.

213232110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179562 (or 179560 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 213232110220 its reverse (22011232312), we get a palindrome (235243342532).

The spelling of 213232110220 in words is "two hundred thirteen billion, two hundred thirty-two million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 107 214 428 535 557 1070 1114 2140 2228 2785 5570 11140 59599 119198 178889 238396 297995 357778 595990 715556 894445 1191980 1788890 3577780 19141123 38282246 76564492 95705615 99641173 191411230 199282346 382822460 398564692 498205865 996411730 1992823460 10661605511 21323211022 42646422044 53308027555 106616055110 213232110220