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10439028 = 2232289973
BaseRepresentation
bin100111110100…
…100101110100
3201122100122200
4213310211310
510133022103
61011424500
7154505325
oct47644564
921570580
1010439028
11598aaa6
1235b5130
132216652
14155a44c
15db30a3
hex9f4974

10439028 has 18 divisors (see below), whose sum is σ = 26387634. Its totient is φ = 3479664.

The previous prime is 10438973. The next prime is 10439041. The reversal of 10439028 is 82093401.

It can be written as a sum of positive squares in only one way, i.e., 10419984 + 19044 = 3228^2 + 138^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 10438992 and 10439010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144951 + ... + 145022.

Almost surely, 210439028 is an apocalyptic number.

10439028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10439028 is an abundant number, since it is smaller than the sum of its proper divisors (15948606).

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

10439028 is a wasteful number, since it uses less digits than its factorization.

10439028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289983 (or 289978 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 10439028 is about 3230.9484675556. The cubic root of 10439028 is about 218.5512798841.

The spelling of 10439028 in words is "ten million, four hundred thirty-nine thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 289973 579946 869919 1159892 1739838 2609757 3479676 5219514 10439028