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11891210010 = 2351285330839
BaseRepresentation
bin10110001001100010…
…10111011100011010
31010200201102001112120
423010301113130122
5143323122210020
65243541522110
7600450421521
oct130461273432
933621361476
1011891210010
115052307099
12237a413336
131176764154
1480b3bd4b8
15498e31740
hex2c4c5771a

11891210010 has 32 divisors (see below), whose sum is σ = 28542049920. Its totient is φ = 3170639808.

The previous prime is 11891209999. The next prime is 11891210057. The reversal of 11891210010 is 1001219811.

11891210010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 370171 + ... + 401009.

It is an arithmetic number, because the mean of its divisors is an integer number (891939060).

Almost surely, 211891210010 is an apocalyptic number.

11891210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11891210010 is an abundant number, since it is smaller than the sum of its proper divisors (16650839910).

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

11891210010 is a wasteful number, since it uses less digits than its factorization.

11891210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43702.

The product of its (nonzero) digits is 144, while the sum is 24.

Adding to 11891210010 its reverse (1001219811), we get a palindrome (12892429821).

The spelling of 11891210010 in words is "eleven billion, eight hundred ninety-one million, two hundred ten thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 12853 25706 30839 38559 61678 64265 77118 92517 128530 154195 185034 192795 308390 385590 462585 925170 396373667 792747334 1189121001 1981868335 2378242002 3963736670 5945605005 11891210010