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10523420 = 2252322877
BaseRepresentation
bin101000001001…
…001100011100
3201210122102022
4220021030130
510143222140
61013315312
7155306345
oct50111434
921718368
1010523420
115a38446
123635b38
132245b9b
14157d0cc
15dcd0b5
hexa0931c

10523420 has 24 divisors (see below), whose sum is σ = 23061024. Its totient is φ = 4026176.

The previous prime is 10523393. The next prime is 10523437. The reversal of 10523420 is 2432501.

It is a super-2 number, since 2×105234202 = 221484736992800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10979 + ... + 11898.

It is an arithmetic number, because the mean of its divisors is an integer number (960876).

Almost surely, 210523420 is an apocalyptic number.

10523420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10523420 is an abundant number, since it is smaller than the sum of its proper divisors (12537604).

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

10523420 is a wasteful number, since it uses less digits than its factorization.

10523420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22909 (or 22907 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 10523420 is about 3243.9821207892. The cubic root of 10523420 is about 219.1386429847.

Adding to 10523420 its reverse (2432501), we get a palindrome (12955921).

The spelling of 10523420 in words is "ten million, five hundred twenty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 22877 45754 91508 114385 228770 457540 526171 1052342 2104684 2630855 5261710 10523420