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213609552200 = 235211229712
BaseRepresentation
bin1100011011110000011…
…1110001100101001000
3202102100211001120101022
43012330013301211020
511444433021132300
6242044134012012
721301305143522
oct3067407614510
9672324046338
10213609552200
1182656029200
12354954a7008
13171b2a82545
14a4a579ca12
15585317e285
hex31bc1f1948

213609552200 has 108 divisors (see below), whose sum is σ = 546079784985. Its totient is φ = 77650056000.

The previous prime is 213609552199. The next prime is 213609552223. The reversal of 213609552200 is 2255906312.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 209337361156 + 4272191044 = 457534^2 + 65362^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=326810.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 71896715 + ... + 71899685.

Almost surely, 2213609552200 is an apocalyptic number.

213609552200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213609552200

213609552200 is an abundant number, since it is smaller than the sum of its proper divisors (332470232785).

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

213609552200 is an equidigital number, since it uses as much as digits as its factorization.

213609552200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5980 (or 2989 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 213609552200 in words is "two hundred thirteen billion, six hundred nine million, five hundred fifty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 121 200 220 242 275 440 484 550 605 968 1100 1210 2200 2420 2971 3025 4840 5942 6050 11884 12100 14855 23768 24200 29710 32681 59420 65362 74275 118840 130724 148550 163405 261448 297100 326810 359491 594200 653620 718982 817025 1307240 1437964 1634050 1797455 2875928 3268100 3594910 6536200 7189820 8826841 8987275 14379640 17653682 17974550 35307364 35949100 44134205 70614728 71898200 88268410 97095251 176536820 194190502 220671025 353073640 388381004 441342050 485476255 776762008 882684100 970952510 1068047761 1765368200 1941905020 2136095522 2427381275 3883810040 4272191044 4854762550 5340238805 8544382088 9709525100 10680477610 19419050200 21360955220 26701194025 42721910440 53402388050 106804776100 213609552200