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11980420 = 225599021
BaseRepresentation
bin101101101100…
…111010000100
3211112200001021
4231230322010
511031333140
61104440524
7203555224
oct55547204
924480037
1011980420
116843081
124019144
13263610a
14183c084
1510b9b4a
hexb6ce84

11980420 has 12 divisors (see below), whose sum is σ = 25158924. Its totient is φ = 4792160.

The previous prime is 11980417. The next prime is 11980421. The reversal of 11980420 is 2408911.

It is a happy number.

11980420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6230016 + 5750404 = 2496^2 + 2398^2 .

It is not an unprimeable number, because it can be changed into a prime (11980421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299491 + ... + 299530.

It is an arithmetic number, because the mean of its divisors is an integer number (2096577).

Almost surely, 211980420 is an apocalyptic number.

11980420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11980420 is an abundant number, since it is smaller than the sum of its proper divisors (13178504).

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

11980420 is a wasteful number, since it uses less digits than its factorization.

11980420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599030 (or 599028 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 11980420 is about 3461.2743318032. The cubic root of 11980420 is about 228.8182612530.

The spelling of 11980420 in words is "eleven million, nine hundred eighty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 599021 1198042 2396084 2995105 5990210 11980420