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212312203202 = 2111091632811933
BaseRepresentation
bin1100010110111011001…
…0110001111111000010
3202022000101212102010102
43011232302301333002
511434303411000302
6241311311202402
721224202644111
oct3055662617702
9668011772112
10212312203202
118204a781750
1235192b16402
1317037065108
14a3c136bc78
1557c9314702
hex316ecb1fc2

212312203202 has 64 divisors (see below), whose sum is σ = 354196782720. Its totient is φ = 94646361600.

The previous prime is 212312203183. The next prime is 212312203241. The reversal of 212312203202 is 202302213212.

It is a happy 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, 109834628 + ... + 109836560.

It is an arithmetic number, because the mean of its divisors is an integer number (5534324730).

Almost surely, 2212312203202 is an apocalyptic number.

212312203202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212312203202 is a deficient number, since it is larger than the sum of its proper divisors (141884579518).

212312203202 is a wasteful number, since it uses less digits than its factorization.

212312203202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212312203202 its reverse (202302213212), we get a palindrome (414614416414).

It can be divided in two parts, 212312 and 203202, that added together give a palindrome (415514).

The spelling of 212312203202 in words is "two hundred twelve billion, three hundred twelve million, two hundred three thousand, two hundred two".

Divisors: 1 2 11 22 109 163 218 281 326 562 1199 1793 1933 2398 3091 3586 3866 6182 17767 21263 30629 35534 42526 45803 61258 91606 195437 210697 315079 336919 390874 421394 503833 543173 630158 673838 1007666 1086346 2317667 3465869 4635334 4992527 5974903 6931738 9985054 11949806 34343611 54917797 59205857 68687222 88537199 109835594 118411714 177074398 377779721 651264427 755559442 973909189 1302528854 1947818378 9650554691 19301109382 106156101601 212312203202