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12412020 = 2235375591
BaseRepresentation
bin101111010110…
…010001110100
3212100121002110
4233112101310
511134141040
61122011020
7210333435
oct57262164
925317073
1012412020
117008375
1241a6a70
1327576ba
14191148c
151152980
hexbd6474

12412020 has 48 divisors (see below), whose sum is σ = 35699328. Its totient is φ = 3219840.

The previous prime is 12412013. The next prime is 12412021. The reversal of 12412020 is 2021421.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12411987 and 12412005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12412021) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 576 + ... + 5015.

It is an arithmetic number, because the mean of its divisors is an integer number (743736).

Almost surely, 212412020 is an apocalyptic number.

12412020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12412020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17849664).

12412020 is an abundant number, since it is smaller than the sum of its proper divisors (23287308).

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

12412020 is a wasteful number, since it uses less digits than its factorization.

12412020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5640 (or 5638 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 12412020 is about 3523.0696842384. The cubic root of 12412020 is about 231.5336699033.

Adding to 12412020 its reverse (2021421), we get a palindrome (14433441).

The spelling of 12412020 in words is "twelve million, four hundred twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 5591 11182 16773 22364 27955 33546 55910 67092 83865 111820 167730 206867 335460 413734 620601 827468 1034335 1241202 2068670 2482404 3103005 4137340 6206010 12412020