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202311300223 = 173716313271487
BaseRepresentation
bin1011110001101010110…
…0010111010001111111
3201100012102101220100101
42330122230113101333
511303313143101343
6232535053141531
720421314451424
oct2743254272177
9640172356311
10202311300223
117888850027a
123326178a8a7
131610211c946
149b13051d4b
1553e1328e4d
hex2f1ab1747f

202311300223 has 32 divisors (see below), whose sum is σ = 221666955264. Its totient is φ = 183865324032.

The previous prime is 202311300209. The next prime is 202311300227. The reversal of 202311300223 is 322003113202.

It is a de Polignac number, because none of the positive numbers 2k-202311300223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202311300223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202311300227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136052586 + ... + 136054072.

It is an arithmetic number, because the mean of its divisors is an integer number (6927092352).

Almost surely, 2202311300223 is an apocalyptic number.

202311300223 is a deficient number, since it is larger than the sum of its proper divisors (19355655041).

202311300223 is a wasteful number, since it uses less digits than its factorization.

202311300223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 202311300223 its reverse (322003113202), we get a palindrome (524314413425).

The spelling of 202311300223 in words is "two hundred two billion, three hundred eleven million, three hundred thousand, two hundred twenty-three".

Divisors: 1 17 37 163 629 1327 1487 2771 6031 22559 25279 49099 55019 102527 216301 242381 834683 935323 1973249 3677117 4120477 8003137 8968097 33545233 73010213 136053329 152457649 321639587 1241173621 5467872979 11900664719 202311300223