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200111212210 = 25721331414633
BaseRepresentation
bin1011101001011110001…
…1101100011010110010
3201010112002112211222011
42322113203230122302
511234311432242320
6231532501433134
720312641144600
oct2722743543262
9633462484864
10200111212210
1177959620618
1232948a0b7aa
1315b4138a210
149984b90870
1553130e105a
hex2e978ec6b2

200111212210 has 48 divisors (see below), whose sum is σ = 451239802776. Its totient is φ = 63331898112.

The previous prime is 200111212177. The next prime is 200111212267. The reversal of 200111212210 is 12212111002.

It can be written as a sum of positive squares in 4 ways, for example, as 55810755049 + 144300457161 = 236243^2 + 379869^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15700947 + ... + 15713686.

Almost surely, 2200111212210 is an apocalyptic number.

200111212210 is an abundant number, since it is smaller than the sum of its proper divisors (251128590566).

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

200111212210 is a wasteful number, since it uses less digits than its factorization.

200111212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31414667 (or 31414660 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200111212210 its reverse (12212111002), we get a palindrome (212323323212).

The spelling of 200111212210 in words is "two hundred billion, one hundred eleven million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 7 10 13 14 26 35 49 65 70 91 98 130 182 245 455 490 637 910 1274 3185 6370 31414633 62829266 157073165 219902431 314146330 408390229 439804862 816780458 1099512155 1539317017 2041951145 2199024310 2858731603 3078634034 4083902290 5717463206 7696585085 14293658015 15393170170 20011121221 28587316030 40022242442 100055606105 200111212210