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12041020 = 2253119421
BaseRepresentation
bin101101111011…
…101100111100
3211122202011201
4231323230330
511040303040
61110025244
7204230005
oct55735474
924582151
1012041020
116884662
124048224
132657884
1418561ac
1510cca9a
hexb7bb3c

12041020 has 24 divisors (see below), whose sum is σ = 26103168. Its totient is φ = 4660800.

The previous prime is 12040999. The next prime is 12041027. The reversal of 12041020 is 2014021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12040988 and 12041006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12041027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9091 + ... + 10330.

It is an arithmetic number, because the mean of its divisors is an integer number (1087632).

Almost surely, 212041020 is an apocalyptic number.

12041020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12041020 is an abundant number, since it is smaller than the sum of its proper divisors (14062148).

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

12041020 is a wasteful number, since it uses less digits than its factorization.

12041020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19461 (or 19459 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 12041020 is about 3470.0172910232. The cubic root of 12041020 is about 229.2034194865.

Adding to 12041020 its reverse (2014021), we get a palindrome (14055041).

The spelling of 12041020 in words is "twelve million, forty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 19421 38842 77684 97105 194210 388420 602051 1204102 2408204 3010255 6020510 12041020