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10384891 = 112341047
BaseRepresentation
bin100111100111…
…010111111011
3201112121101121
4213213113323
510124304031
61010330111
7154161436
oct47472773
921477347
1010384891
115953360
123589937
1321c7b0a
14154481d
15da2011
hex9e75fb

10384891 has 8 divisors (see below), whose sum is σ = 11821824. Its totient is φ = 9030120.

The previous prime is 10384879. The next prime is 10384897. The reversal of 10384891 is 19848301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10384891 - 25 = 10384859 is a prime.

It is a super-2 number, since 2×103848912 = 215691922163762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10384897) 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 7 ways as a sum of consecutive naturals, for example, 20271 + ... + 20776.

It is an arithmetic number, because the mean of its divisors is an integer number (1477728).

Almost surely, 210384891 is an apocalyptic number.

10384891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10384891 is a deficient number, since it is larger than the sum of its proper divisors (1436933).

10384891 is a wasteful number, since it uses less digits than its factorization.

10384891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41081.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 10384891 is about 3222.5596968869. The cubic root of 10384891 is about 218.1728211831.

It can be divided in two parts, 1038 and 4891, that added together give a square (5929 = 772).

The spelling of 10384891 in words is "ten million, three hundred eighty-four thousand, eight hundred ninety-one".

Divisors: 1 11 23 253 41047 451517 944081 10384891