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211200012010 = 25132576321461
BaseRepresentation
bin1100010010110010000…
…0000110111011101010
3202012010220002020122001
43010230200012323222
511430014200341020
6241005101121214
721154506324151
oct3045440067352
9665126066561
10211200012010
118162999aa79
1234b2255920a
1316bba806410
14a317778598
15576187150a
hex312c806eea

211200012010 has 32 divisors (see below), whose sum is σ = 410996173392. Its totient is φ = 77678100480.

The previous prime is 211200011993. The next prime is 211200012031. The reversal of 211200012010 is 10210002112.

It can be written as a sum of positive squares in 8 ways, for example, as 108195602761 + 103004409249 = 328931^2 + 320943^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3127321 + ... + 3194140.

Almost surely, 2211200012010 is an apocalyptic number.

211200012010 is a deficient number, since it is larger than the sum of its proper divisors (199796161382).

211200012010 is a wasteful number, since it uses less digits than its factorization.

211200012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321738.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 211200012010 its reverse (10210002112), we get a palindrome (221410014122).

The spelling of 211200012010 in words is "two hundred eleven billion, two hundred million, twelve thousand, ten".

Divisors: 1 2 5 10 13 26 65 130 257 514 1285 2570 3341 6682 16705 33410 6321461 12642922 31607305 63214610 82178993 164357986 410894965 821789930 1624615477 3249230954 8123077385 16246154770 21120001201 42240002402 105600006005 211200012010