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10288861 = 111922591
BaseRepresentation
bin100111001111…
…111011011101
3201100201122221
4213033323131
510113220421
61004305341
7153311452
oct47177335
921321587
1010288861
1158981a0
123542251
1321931ab
14151b829
15d83841
hex9cfedd

10288861 has 12 divisors (see below), whose sum is σ = 11850624. Its totient is φ = 8857800.

The previous prime is 10288847. The next prime is 10288867. The reversal of 10288861 is 16888201.

It is not a de Polignac number, because 10288861 - 211 = 10286813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10288867) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2676 + ... + 5266.

It is an arithmetic number, because the mean of its divisors is an integer number (987552).

Almost surely, 210288861 is an apocalyptic number.

10288861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10288861 is a deficient number, since it is larger than the sum of its proper divisors (1561763).

10288861 is a wasteful number, since it uses less digits than its factorization.

10288861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640 (or 2621 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 10288861 is about 3207.6254457153. The cubic root of 10288861 is about 217.4982498648.

It can be divided in two parts, 1028 and 8861, that added together give a palindrome (9889).

The spelling of 10288861 in words is "ten million, two hundred eighty-eight thousand, eight hundred sixty-one".

Divisors: 1 11 19 209 361 2591 3971 28501 49229 541519 935351 10288861